diff --git a/build/psalm-baseline.xml b/build/psalm-baseline.xml
index 371f575b9a25e..9dc7e8e71c321 100644
--- a/build/psalm-baseline.xml
+++ b/build/psalm-baseline.xml
@@ -3781,17 +3781,12 @@
       <code><![CDATA[$this->mountManager->findByNumericId($numericId)]]></code>
       <code><![CDATA[$this->mountManager->findByStorageId($storageId)]]></code>
       <code><![CDATA[$this->mountManager->findIn($mountPoint)]]></code>
-      <code><![CDATA[$this->user]]></code>
     </LessSpecificReturnStatement>
     <MoreSpecificReturnType>
       <code><![CDATA[MountPoint[]]]></code>
       <code><![CDATA[\OC\Files\Mount\MountPoint[]]]></code>
       <code><![CDATA[\OC\Files\Mount\MountPoint[]]]></code>
-      <code><![CDATA[\OC\User\User]]></code>
     </MoreSpecificReturnType>
-    <NullableReturnStatement>
-      <code><![CDATA[$this->user]]></code>
-    </NullableReturnStatement>
     <UndefinedMethod>
       <code><![CDATA[remove]]></code>
     </UndefinedMethod>
diff --git a/lib/private/Files/Mount/Manager.php b/lib/private/Files/Mount/Manager.php
index b763697387dd7..72b38f38575b7 100644
--- a/lib/private/Files/Mount/Manager.php
+++ b/lib/private/Files/Mount/Manager.php
@@ -230,11 +230,11 @@ public function getSetupManager(): SetupManager {
 	}
 
 	/**
-	 * Return all mounts in a path from a specific mount provider
+	 * Return all mounts in a path from a specific mount provider, indexed by mount point
 	 *
 	 * @param string $path
 	 * @param string[] $mountProviders
-	 * @return IMountPoint[]
+	 * @return array<string, IMountPoint>
 	 */
 	public function getMountsByMountProvider(string $path, array $mountProviders) {
 		$this->getSetupManager()->setupForProvider($path, $mountProviders);
diff --git a/lib/private/Files/Node/Root.php b/lib/private/Files/Node/Root.php
index c94eadcedb3f6..20e1f4c382ecb 100644
--- a/lib/private/Files/Node/Root.php
+++ b/lib/private/Files/Node/Root.php
@@ -5,6 +5,7 @@
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
  * SPDX-License-Identifier: AGPL-3.0-only
  */
+
 namespace OC\Files\Node;
 
 use OC\Files\FileInfo;
@@ -19,6 +20,8 @@
 use OCP\Cache\CappedMemoryCache;
 use OCP\EventDispatcher\IEventDispatcher;
 use OCP\Files\Cache\ICacheEntry;
+use OCP\Files\Config\ICachedMountFileInfo;
+use OCP\Files\Config\ICachedMountInfo;
 use OCP\Files\Config\IUserMountCache;
 use OCP\Files\Events\Node\FilesystemTornDownEvent;
 use OCP\Files\IRootFolder;
@@ -82,10 +85,8 @@ public function __construct(
 
 	/**
 	 * Get the user for which the filesystem is setup
-	 *
-	 * @return \OC\User\User
 	 */
-	public function getUser() {
+	public function getUser(): ?IUser {
 		return $this->user;
 	}
 
@@ -411,12 +412,12 @@ public function getByIdInPath(int $id, string $path): array {
 		} else {
 			$user = null;
 		}
-		$mountsContainingFile = $mountCache->getMountsForFileId($id, $user);
+		$mountInfosContainingFiles = $mountCache->getMountsForFileId($id, $user);
 
 		// if the mount isn't in the cache yet, perform a setup first, then try again
-		if (count($mountsContainingFile) === 0) {
+		if (count($mountInfosContainingFiles) === 0) {
 			$setupManager->setupForPath($path, true);
-			$mountsContainingFile = $mountCache->getMountsForFileId($id, $user);
+			$mountInfosContainingFiles = $mountCache->getMountsForFileId($id, $user);
 		}
 
 		// when a user has access through the same storage through multiple paths
@@ -428,16 +429,31 @@ public function getByIdInPath(int $id, string $path): array {
 
 		$mountRootIds = array_map(function ($mount) {
 			return $mount->getRootId();
-		}, $mountsContainingFile);
+		}, $mountInfosContainingFiles);
 		$mountRootPaths = array_map(function ($mount) {
 			return $mount->getRootInternalPath();
-		}, $mountsContainingFile);
+		}, $mountInfosContainingFiles);
 		$mountProviders = array_unique(array_map(function ($mount) {
 			return $mount->getMountProvider();
-		}, $mountsContainingFile));
+		}, $mountInfosContainingFiles));
+		$mountPoints = array_map(fn (ICachedMountInfo $mountInfo) => $mountInfo->getMountPoint(), $mountInfosContainingFiles);
 		$mountRoots = array_combine($mountRootIds, $mountRootPaths);
 
-		$mountsContainingFile = array_filter(array_map($this->mountManager->getMountFromMountInfo(...), $mountsContainingFile));
+		$mounts = $this->mountManager->getMountsByMountProvider($path, $mountProviders);
+		$mountsContainingFile = array_filter($mounts, fn (IMountPoint $mount) => in_array($mount->getMountPoint(), $mountPoints));
+
+		if (count($mountsContainingFile) == 0 && count($mountInfosContainingFiles) > 0) {
+			if (!$user) {
+				$user = $this->getUser()?->getUID();
+			}
+			if (!$user) {
+				/** @var ICachedMountFileInfo $firstMount */
+				$firstMount = current($mountInfosContainingFiles);
+				$user = $firstMount->getUser()->getUID();
+			}
+			$mountInfosContainingFiles = array_filter($mountInfosContainingFiles, fn (ICachedMountInfo $mountInfo) => $mountInfo->getUser()->getUID() === $user);
+			$mountsContainingFile = array_filter(array_map($this->mountManager->getMountFromMountInfo(...), $mountInfosContainingFiles));
+		}
 
 		if (count($mountsContainingFile) === 0) {
 			if ($user === $this->getAppDataDirectoryName()) {
diff --git a/tests/lib/Files/Node/FolderTest.php b/tests/lib/Files/Node/FolderTest.php
index 19374fee6c128..e0ed345049bf1 100644
--- a/tests/lib/Files/Node/FolderTest.php
+++ b/tests/lib/Files/Node/FolderTest.php
@@ -541,6 +541,8 @@ public function testGetById(): void {
 
 		$manager->method('getMountFromMountInfo')
 			->willReturn($mount);
+		$manager->method('getMountsByMountProvider')
+			->willReturn([$mount]);
 
 		$node = new Folder($root, $view, '/bar/foo');
 		$result = $node->getById(1);
@@ -586,6 +588,8 @@ public function testGetByIdMountRoot(): void {
 
 		$manager->method('getMountFromMountInfo')
 			->willReturn($mount);
+		$manager->method('getMountsByMountProvider')
+			->willReturn([$mount]);
 
 		$node = new Folder($root, $view, '/bar');
 		$result = $node->getById(1);
@@ -631,6 +635,8 @@ public function testGetByIdOutsideFolder(): void {
 
 		$manager->method('getMountFromMountInfo')
 			->willReturn($mount);
+		$manager->method('getMountsByMountProvider')
+			->willReturn([$mount]);
 
 		$node = new Folder($root, $view, '/bar/foo');
 		$result = $node->getById(1);
@@ -694,6 +700,8 @@ public function testGetByIdMultipleStorages(): void {
 				}
 				return null;
 			});
+		$manager->method('getMountsByMountProvider')
+			->willReturn([$mount1, $mount2]);
 
 		$node = new Folder($root, $view, '/bar/foo');
 		$result = $node->getById(1);