diff --git a/apps/dav/tests/unit/Files/FileSearchBackendTest.php b/apps/dav/tests/unit/Files/FileSearchBackendTest.php
index 715130d2faeef..ea84114020194 100644
--- a/apps/dav/tests/unit/Files/FileSearchBackendTest.php
+++ b/apps/dav/tests/unit/Files/FileSearchBackendTest.php
@@ -41,6 +41,7 @@
 use OCP\Files\Search\ISearchBinaryOperator;
 use OCP\Files\Search\ISearchComparison;
 use OCP\Files\Search\ISearchQuery;
+use OCP\FilesMetadata\IFilesMetadataManager;
 use OCP\IUser;
 use OCP\Share\IManager;
 use SearchDAV\Backend\SearchPropertyDefinition;
@@ -114,7 +115,9 @@ protected function setUp(): void {
 			->method('get')
 			->willReturn($this->searchFolder);
 
-		$this->search = new FileSearchBackend($this->tree, $this->user, $this->rootFolder, $this->shareManager, $this->view);
+		$filesMetadataManager = $this->createMock(IFilesMetadataManager::class);
+
+		$this->search = new FileSearchBackend($this->tree, $this->user, $this->rootFolder, $this->shareManager, $this->view, $filesMetadataManager);
 	}
 
 	public function testSearchFilename(): void {
diff --git a/core/Command/FilesMetadata/Get.php b/core/Command/FilesMetadata/Get.php
index aebabe63e359f..99bc167f71d1e 100644
--- a/core/Command/FilesMetadata/Get.php
+++ b/core/Command/FilesMetadata/Get.php
@@ -91,7 +91,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
 		if ($input->getOption('reset')) {
 			$this->filesMetadataManager->deleteMetadata($fileId);
 			if (!$input->getOption('refresh')) {
-				return 0;
+				return self::SUCCESS;
 			}
 		}
 
@@ -114,6 +114,6 @@ protected function execute(InputInterface $input, OutputInterface $output): int
 			$output->writeln(json_encode($metadata, JSON_PRETTY_PRINT));
 		}
 
-		return 0;
+		return self::SUCCESS;
 	}
 }
diff --git a/lib/private/Files/Cache/SearchBuilder.php b/lib/private/Files/Cache/SearchBuilder.php
index ba4aabf2b4fb7..1f9a6af931b2d 100644
--- a/lib/private/Files/Cache/SearchBuilder.php
+++ b/lib/private/Files/Cache/SearchBuilder.php
@@ -78,7 +78,7 @@ public function extractRequestedFields(ISearchOperator $operator): array {
 			return array_reduce($operator->getArguments(), function (array $fields, ISearchOperator $operator) {
 				return array_unique(array_merge($fields, $this->extractRequestedFields($operator)));
 			}, []);
-		} elseif ($operator instanceof ISearchComparison && !$operator->isExtra()) {
+		} elseif ($operator instanceof ISearchComparison && !$operator->getExtra()) {
 			return [$operator->getField()];
 		}
 		return [];
diff --git a/lib/private/Files/Node/Folder.php b/lib/private/Files/Node/Folder.php
index eba7ce1d77e00..c7462572fed06 100644
--- a/lib/private/Files/Node/Folder.php
+++ b/lib/private/Files/Node/Folder.php
@@ -252,8 +252,6 @@ public function search($query) {
 		if ($order) {
 			usort($files, function (FileInfo $a, FileInfo $b) use ($order) {
 				foreach ($order as $orderField) {
-					// needed !?
-					// if ($orderField->isExtra()) { continue; }
 					$cmp = $orderField->sortFileInfo($a, $b);
 					if ($cmp !== 0) {
 						return $cmp;
diff --git a/lib/private/Files/Search/QueryOptimizer/PathPrefixOptimizer.php b/lib/private/Files/Search/QueryOptimizer/PathPrefixOptimizer.php
index cf9e6ad5b91bc..664402f1238c8 100644
--- a/lib/private/Files/Search/QueryOptimizer/PathPrefixOptimizer.php
+++ b/lib/private/Files/Search/QueryOptimizer/PathPrefixOptimizer.php
@@ -51,7 +51,7 @@ public function inspectOperator(ISearchOperator $operator): void {
 	}
 
 	public function processOperator(ISearchOperator &$operator) {
-		if (!$this->useHashEq && $operator instanceof ISearchComparison && !$operator->isExtra() && $operator->getField() === 'path' && $operator->getType() === ISearchComparison::COMPARE_EQUAL) {
+		if (!$this->useHashEq && $operator instanceof ISearchComparison && !$operator->getExtra() && $operator->getField() === 'path' && $operator->getType() === ISearchComparison::COMPARE_EQUAL) {
 			$operator->setQueryHint(ISearchComparison::HINT_PATH_EQ_HASH, false);
 		}
 
@@ -72,7 +72,7 @@ private function isPathPrefixOperator(ISearchOperator $operator): bool {
 	private function operatorPairIsPathPrefix(ISearchOperator $like, ISearchOperator $equal): bool {
 		return (
 			$like instanceof ISearchComparison && $equal instanceof ISearchComparison &&
-			!$like->isExtra() && !$equal->isExtra() && $like->getField() === 'path' && $equal->getField() === 'path' &&
+			!$like->getExtra() && !$equal->getExtra() && $like->getField() === 'path' && $equal->getField() === 'path' &&
 			$like->getType() === ISearchComparison::COMPARE_LIKE_CASE_SENSITIVE && $equal->getType() === ISearchComparison::COMPARE_EQUAL
 			&& $like->getValue() === SearchComparison::escapeLikeParameter($equal->getValue()) . '/%'
 		);
diff --git a/lib/private/Files/Search/SearchComparison.php b/lib/private/Files/Search/SearchComparison.php
index 5caa632f6184c..4f9ac266397bd 100644
--- a/lib/private/Files/Search/SearchComparison.php
+++ b/lib/private/Files/Search/SearchComparison.php
@@ -1,4 +1,6 @@
 <?php
+
+declare(strict_types=1);
 /**
  * @copyright Copyright (c) 2017 Robin Appelman <robin@icewind.nl>
  *
@@ -39,32 +41,32 @@ public function __construct(
 	/**
 	 * @return string
 	 */
-	public function getType() {
+	public function getType(): string {
 		return $this->type;
 	}
 
 	/**
 	 * @return string
 	 */
-	public function getField() {
+	public function getField(): string {
 		return $this->field;
 	}
 
 	/**
 	 * @return \DateTime|int|string
 	 */
-	public function getValue() {
+	public function getValue(): string|int|\DateTime {
 		return $this->value;
 	}
 
+	/**
+	 * @return string
+	 * @since 28.0.0
+	 */
 	public function getExtra(): string {
 		return $this->extra;
 	}
 
-	public function isExtra(): bool {
-		return ($this->extra !== '');
-	}
-
 	public function getQueryHint(string $name, $default) {
 		return $this->hints[$name] ?? $default;
 	}
diff --git a/lib/private/Files/Search/SearchOrder.php b/lib/private/Files/Search/SearchOrder.php
index ca974ca9c034c..de514262bf5e0 100644
--- a/lib/private/Files/Search/SearchOrder.php
+++ b/lib/private/Files/Search/SearchOrder.php
@@ -48,14 +48,14 @@ public function getField(): string {
 		return $this->field;
 	}
 
+	/**
+	 * @return string
+	 * @since 28.0.0
+	 */
 	public function getExtra(): string {
 		return $this->extra;
 	}
 
-	public function isExtra(): bool {
-		return ($this->extra !== '');
-	}
-
 	public function sortFileInfo(FileInfo $a, FileInfo $b): int {
 		$cmp = $this->sortFileInfoNoDirection($a, $b);
 		return $cmp * ($this->direction === ISearchOrder::DIRECTION_ASCENDING ? 1 : -1);
diff --git a/lib/private/FilesMetadata/FilesMetadataManager.php b/lib/private/FilesMetadata/FilesMetadataManager.php
index 7e941234ce3f4..54310f934d72a 100644
--- a/lib/private/FilesMetadata/FilesMetadataManager.php
+++ b/lib/private/FilesMetadata/FilesMetadataManager.php
@@ -242,6 +242,7 @@ public function getKnownMetadata(): IFilesMetadata {
 	/**
 	 * @param string $key metadata key
 	 * @param string $type metadata type
+	 * @param bool $indexed TRUE if metadata can be search
 	 *
 	 * @inheritDoc
 	 * @since 28.0.0
@@ -253,17 +254,17 @@ public function getKnownMetadata(): IFilesMetadata {
 	 * @see IMetadataValueWrapper::TYPE_INT_LIST
 	 * @see IMetadataValueWrapper::TYPE_STRING
 	 */
-	public function initMetadataIndex(string $key, string $type): void {
+	public function initMetadata(string $key, string $type, bool $indexed): void {
 		$current = $this->getKnownMetadata();
 		try {
-			if ($current->getType($key) === $type && $current->isIndex($key)) {
-				return; // if key exists, with same type and is already indexed, we do nothing.
+			if ($current->getType($key) === $type && $indexed === $current->isIndex($key)) {
+				return; // if key exists, with same type and indexed, we do nothing.
 			}
 		} catch (FilesMetadataNotFoundException) {
 			// if value does not exist, we keep on the writing of course
 		}
 
-		$current->import([$key => ['type' => $type, 'indexed' => true]]);
+		$current->import([$key => ['type' => $type, 'indexed' => $indexed]]);
 		$this->config->setAppValue('core', self::CONFIG_KEY, json_encode($current));
 	}
 
diff --git a/lib/private/FilesMetadata/Job/UpdateSingleMetadata.php b/lib/private/FilesMetadata/Job/UpdateSingleMetadata.php
index d628e468cdd2a..ff7dfcb8368cb 100644
--- a/lib/private/FilesMetadata/Job/UpdateSingleMetadata.php
+++ b/lib/private/FilesMetadata/Job/UpdateSingleMetadata.php
@@ -33,6 +33,7 @@
 use OCP\Files\NotPermittedException;
 use OCP\FilesMetadata\Event\MetadataLiveEvent;
 use OCP\FilesMetadata\IFilesMetadataManager;
+use Psr\Log\LoggerInterface;
 
 /**
  * Simple background job, created when requested by an app during the
@@ -47,6 +48,7 @@ public function __construct(
 		ITimeFactory $time,
 		private IRootFolder $rootFolder,
 		private FilesMetadataManager $filesMetadataManager,
+		private LoggerInterface $logger
 	) {
 		parent::__construct($time);
 	}
@@ -60,7 +62,8 @@ protected function run($argument) {
 				$file = array_shift($node);
 				$this->filesMetadataManager->refreshMetadata($file, IFilesMetadataManager::PROCESS_BACKGROUND);
 			}
-		} catch (NotPermittedException|NoUserException $e) {
+		} catch (\Exception $e) {
+			$this->logger->warning('issue while running UpdateSingleMetadata', ['exception' => $e, 'userId' => $userId, 'fileId' => $fileId]);
 		}
 	}
 }
diff --git a/lib/private/FilesMetadata/Listener/MetadataDelete.php b/lib/private/FilesMetadata/Listener/MetadataDelete.php
index 7f8fd03573503..25c944475a9ee 100644
--- a/lib/private/FilesMetadata/Listener/MetadataDelete.php
+++ b/lib/private/FilesMetadata/Listener/MetadataDelete.php
@@ -30,6 +30,7 @@
 use OCP\EventDispatcher\IEventListener;
 use OCP\Files\Events\Node\NodeDeletedEvent;
 use OCP\FilesMetadata\IFilesMetadataManager;
+use Psr\Log\LoggerInterface;
 
 /**
  * Handle file deletion event and remove stored metadata related to the deleted file
@@ -39,6 +40,7 @@
 class MetadataDelete implements IEventListener {
 	public function __construct(
 		private IFilesMetadataManager $filesMetadataManager,
+		private LoggerInterface $logger
 	) {
 	}
 
@@ -56,6 +58,7 @@ public function handle(Event $event): void {
 				$this->filesMetadataManager->deleteMetadata($nodeId);
 			}
 		} catch (Exception $e) {
+			$this->logger->warning('issue while running MetadataDelete', ['exception' => $e]);
 		}
 	}
 }
diff --git a/lib/private/FilesMetadata/Listener/MetadataUpdate.php b/lib/private/FilesMetadata/Listener/MetadataUpdate.php
index 64c8bb474b15f..395a852e9e390 100644
--- a/lib/private/FilesMetadata/Listener/MetadataUpdate.php
+++ b/lib/private/FilesMetadata/Listener/MetadataUpdate.php
@@ -31,6 +31,7 @@
 use OCP\Files\Events\Node\NodeCreatedEvent;
 use OCP\Files\Events\Node\NodeWrittenEvent;
 use OCP\FilesMetadata\IFilesMetadataManager;
+use Psr\Log\LoggerInterface;
 
 /**
  * Handle file creation/modification events and initiate a new event related to the created/edited file.
@@ -42,6 +43,7 @@
 class MetadataUpdate implements IEventListener {
 	public function __construct(
 		private IFilesMetadataManager $filesMetadataManager,
+		private LoggerInterface $logger
 	) {
 	}
 
@@ -56,6 +58,7 @@ public function handle(Event $event): void {
 		try {
 			$this->filesMetadataManager->refreshMetadata($event->getNode());
 		} catch (Exception $e) {
+			$this->logger->warning('issue while running MetadataUpdate', ['exception' => $e]);
 		}
 	}
 }
diff --git a/lib/public/Files/Search/ISearchComparison.php b/lib/public/Files/Search/ISearchComparison.php
index 068a7e4c69975..f0b4454305480 100644
--- a/lib/public/Files/Search/ISearchComparison.php
+++ b/lib/public/Files/Search/ISearchComparison.php
@@ -44,7 +44,7 @@ interface ISearchComparison extends ISearchOperator {
 	 * @return string
 	 * @since 12.0.0
 	 */
-	public function getType();
+	public function getType(): string;
 
 	/**
 	 * Get the name of the field to compare with
@@ -54,24 +54,7 @@ public function getType();
 	 * @return string
 	 * @since 12.0.0
 	 */
-	public function getField();
-
-
-	/**
-	 * extra means data are not related to the main files table
-	 *
-	 * @return string
-	 * @since 28.0.0
-	 */
-	public function getExtra(): string;
-
-	/**
-	 * returns if data are 'extra' or not
-	 *
-	 * @return bool
-	 * @since 28.0.0
-	 */
-	public function isExtra(): bool;
+	public function getField(): string;
 
 	/**
 	 * Get the value to compare the field with
@@ -79,5 +62,5 @@ public function isExtra(): bool;
 	 * @return string|integer|\DateTime
 	 * @since 12.0.0
 	 */
-	public function getValue();
+	public function getValue(): string|int|\DateTime;
 }
diff --git a/lib/public/Files/Search/ISearchOrder.php b/lib/public/Files/Search/ISearchOrder.php
index bcb927e73db7c..1bf991ec36844 100644
--- a/lib/public/Files/Search/ISearchOrder.php
+++ b/lib/public/Files/Search/ISearchOrder.php
@@ -49,23 +49,6 @@ public function getDirection(): string;
 	 */
 	public function getField(): string;
 
-	/**
-	 * extra means data are not related to the main files table
-	 *
-	 * @return string
-	 * @since 28.0.0
-	 */
-	public function getExtra(): string;
-
-	/**
-	 * returns if data are 'extra' or not
-	 *
-	 * @return bool
-	 * @since 28.0.0
-	 */
-	public function isExtra(): bool;
-
-
 	/**
 	 * Apply the sorting on 2 FileInfo objects
 	 *
diff --git a/lib/public/FilesMetadata/IFilesMetadataManager.php b/lib/public/FilesMetadata/IFilesMetadataManager.php
index 7ba8cac795a24..1cd0fcb412587 100644
--- a/lib/public/FilesMetadata/IFilesMetadataManager.php
+++ b/lib/public/FilesMetadata/IFilesMetadataManager.php
@@ -38,10 +38,9 @@
  * @since 28.0.0
  */
 interface IFilesMetadataManager {
-	/**
-	 * @since 28.0.0
-	 */
+	/** @since 28.0.0 */
 	public const PROCESS_LIVE = 1;
+	/** @since 28.0.0 */
 	public const PROCESS_BACKGROUND = 2;
 
 	/**
@@ -128,10 +127,13 @@ public function getKnownMetadata(): IFilesMetadata;
 	/**
 	 * initiate a metadata key with its type.
 	 * The call is mandatory before using the metadata property in a webdav request.
+	 * It is not needed to only use this method when the app is enabled: the method can be
+	 * called each time during the app loading as the metadata will only be initiated if not known
 	 *
 	 * @param string $key metadata key
 	 * @param string $type metadata type
+	 * @param bool $indexed TRUE if metadata can be search
 	 * @since 28.0.0
 	 */
-	public function initMetadataIndex(string $key, string $type): void;
+	public function initMetadata(string $key, string $type, bool $indexed): void;
 }
diff --git a/lib/public/FilesMetadata/Model/IMetadataQuery.php b/lib/public/FilesMetadata/Model/IMetadataQuery.php
index 3e68b47f822f1..d3f55ce6ccee9 100644
--- a/lib/public/FilesMetadata/Model/IMetadataQuery.php
+++ b/lib/public/FilesMetadata/Model/IMetadataQuery.php
@@ -31,6 +31,7 @@
  * @since 28.0.0
  */
 interface IMetadataQuery {
+	/** @since 28.0.0 */
 	public const EXTRA = 'metadata';
 
 	/**