diff --git a/apps/federatedfilesharing/lib/FederatedShareProvider.php b/apps/federatedfilesharing/lib/FederatedShareProvider.php
index 340de3a1761..3f6cc582fde 100644
--- a/apps/federatedfilesharing/lib/FederatedShareProvider.php
+++ b/apps/federatedfilesharing/lib/FederatedShareProvider.php
@@ -578,6 +578,10 @@ class FederatedShareProvider implements IShareProvider {
 
 
 	public function getSharesInFolder($userId, Folder $node, $reshares, $shallow = true) {
+		if (!$shallow) {
+			throw new \Exception("non-shallow getSharesInFolder is no longer supported");
+		}
+
 		$qb = $this->dbConnection->getQueryBuilder();
 		$qb->select('*')
 			->from('share', 's')
@@ -605,12 +609,7 @@ class FederatedShareProvider implements IShareProvider {
 
 		$qb->innerJoin('s', 'filecache', 'f', $qb->expr()->eq('s.file_source', 'f.fileid'));
 
-		$qb->andWhere($qb->expr()->eq('f.storage', $qb->createNamedParameter($node->getMountPoint()->getNumericStorageId(), IQueryBuilder::PARAM_INT)));
-		if ($shallow) {
-			$qb->andWhere($qb->expr()->eq('f.parent', $qb->createNamedParameter($node->getId(), IQueryBuilder::PARAM_INT)));
-		} else {
-			$qb->andWhere($qb->expr()->like('f.path', $qb->createNamedParameter($this->dbConnection->escapeLikeParameter($node->getInternalPath()) . '/%')));
-		}
+		$qb->andWhere($qb->expr()->eq('f.parent', $qb->createNamedParameter($node->getId())));
 
 		$qb->orderBy('id');
 
diff --git a/apps/files_sharing/lib/Updater.php b/apps/files_sharing/lib/Updater.php
index 95a5c9d9166..8d3161ad870 100644
--- a/apps/files_sharing/lib/Updater.php
+++ b/apps/files_sharing/lib/Updater.php
@@ -26,9 +26,11 @@
  */
 namespace OCA\Files_Sharing;
 
+use OC\Files\Cache\FileAccess;
 use OC\Files\Mount\MountPoint;
 use OCP\Constants;
 use OCP\Files\Folder;
+use OCP\Server;
 use OCP\Share\IShare;
 
 class Updater {
@@ -58,20 +60,40 @@ class Updater {
 		if ($userFolder === null) {
 			return;
 		}
+		$user = $userFolder->getOwner();
+		if (!$user) {
+			throw new \Exception("user folder has no owner");
+		}
 
 		$src = $userFolder->get($path);
 
 		$shareManager = \OC::$server->getShareManager();
 
 		// FIXME: should CIRCLES be included here ??
-		$shares = $shareManager->getSharesBy($userFolder->getOwner()->getUID(), IShare::TYPE_USER, $src, false, -1);
-		$shares = array_merge($shares, $shareManager->getSharesBy($userFolder->getOwner()->getUID(), IShare::TYPE_GROUP, $src, false, -1));
-		$shares = array_merge($shares, $shareManager->getSharesBy($userFolder->getOwner()->getUID(), IShare::TYPE_ROOM, $src, false, -1));
+		$shares = $shareManager->getSharesBy($user->getUID(), IShare::TYPE_USER, $src, false, -1);
+		$shares = array_merge($shares, $shareManager->getSharesBy($user->getUID(), IShare::TYPE_GROUP, $src, false, -1));
+		$shares = array_merge($shares, $shareManager->getSharesBy($user->getUID(), IShare::TYPE_ROOM, $src, false, -1));
 
 		if ($src instanceof Folder) {
-			$subShares = $shareManager->getSharesInFolder($userFolder->getOwner()->getUID(), $src, false, false);
+			$cacheAccess = Server::get(FileAccess::class);
+
+			$sourceStorageId = $src->getStorage()->getCache()->getNumericStorageId();
+			$sourceInternalPath = $src->getInternalPath();
+			$subShares = array_merge(
+				$shareManager->getSharesBy($user->getUID(), IShare::TYPE_USER),
+				$shareManager->getSharesBy($user->getUID(), IShare::TYPE_GROUP),
+				$shareManager->getSharesBy($user->getUID(), IShare::TYPE_ROOM),
+			);
+			$shareSourceIds = array_map(fn (IShare $share) => $share->getNodeId(), $subShares);
+			$shareSources = $cacheAccess->getByFileIdsInStorage($shareSourceIds, $sourceStorageId);
 			foreach ($subShares as $subShare) {
-				$shares = array_merge($shares, array_values($subShare));
+				$shareCacheEntry = $shareSources[$subShare->getNodeId()] ?? null;
+				if (
+					$shareCacheEntry &&
+					str_starts_with($shareCacheEntry->getPath(), $sourceInternalPath . '/')
+				) {
+					$shares[] = $subShare;
+				}
 			}
 		}
 
diff --git a/apps/sharebymail/lib/ShareByMailProvider.php b/apps/sharebymail/lib/ShareByMailProvider.php
index f1bb3fe94ca..a219ef47dd3 100644
--- a/apps/sharebymail/lib/ShareByMailProvider.php
+++ b/apps/sharebymail/lib/ShareByMailProvider.php
@@ -1069,12 +1069,7 @@ class ShareByMailProvider implements IShareProvider {
 
 		$qb->innerJoin('s', 'filecache', 'f', $qb->expr()->eq('s.file_source', 'f.fileid'));
 
-		$qb->andWhere($qb->expr()->eq('f.storage', $qb->createNamedParameter($node->getMountPoint()->getNumericStorageId(), IQueryBuilder::PARAM_INT)));
-		if ($shallow) {
-			$qb->andWhere($qb->expr()->eq('f.parent', $qb->createNamedParameter($node->getId())));
-		} else {
-			$qb->andWhere($qb->expr()->like('f.path', $qb->createNamedParameter($this->dbConnection->escapeLikeParameter($node->getInternalPath()) . '/%')));
-		}
+		$qb->andWhere($qb->expr()->eq('f.parent', $qb->createNamedParameter($node->getId())));
 
 		$qb->orderBy('id');
 
diff --git a/lib/private/Share20/DefaultShareProvider.php b/lib/private/Share20/DefaultShareProvider.php
index c22c65f6c7b..318c8986219 100644
--- a/lib/private/Share20/DefaultShareProvider.php
+++ b/lib/private/Share20/DefaultShareProvider.php
@@ -652,6 +652,10 @@ class DefaultShareProvider implements IShareProvider {
 	}
 
 	public function getSharesInFolder($userId, Folder $node, $reshares, $shallow = true) {
+		if (!$shallow) {
+			throw new \Exception("non-shallow getSharesInFolder is no longer supported");
+		}
+
 		$qb = $this->dbConn->getQueryBuilder();
 		$qb->select('s.*',
 			'f.fileid', 'f.path', 'f.permissions AS f_permissions', 'f.storage', 'f.path_hash',
@@ -692,28 +696,12 @@ class DefaultShareProvider implements IShareProvider {
 		}, $childMountNodes);
 
 		$qb->innerJoin('s', 'filecache', 'f', $qb->expr()->eq('s.file_source', 'f.fileid'));
-		$storageFilter = $qb->expr()->eq('f.storage', $qb->createNamedParameter($node->getMountPoint()->getNumericStorageId(), IQueryBuilder::PARAM_INT));
-		if ($shallow) {
-			$qb->andWhere(
-				$qb->expr()->orX(
-					$qb->expr()->andX(
-						$storageFilter,
-						$qb->expr()->eq('f.parent', $qb->createNamedParameter($node->getId())),
-					),
-					$qb->expr()->in('f.fileid', $qb->createParameter('chunk'))
-				)
-			);
-		} else {
-			$qb->andWhere(
-				$qb->expr()->orX(
-					$qb->expr()->andX(
-						$storageFilter,
-						$qb->expr()->like('f.path', $qb->createNamedParameter($this->dbConn->escapeLikeParameter($node->getInternalPath()) . '/%')),
-					),
-					$qb->expr()->in('f.fileid', $qb->createParameter('chunk'))
-				)
-			);
-		}
+		$qb->andWhere(
+			$qb->expr()->orX(
+				$qb->expr()->eq('f.parent', $qb->createNamedParameter($node->getId())),
+				$qb->expr()->in('f.fileid', $qb->createParameter('chunk'))
+			)
+		);
 
 		$qb->orderBy('id');
 
diff --git a/lib/private/Share20/Manager.php b/lib/private/Share20/Manager.php
index 53dbf65ccc7..c5b2860e2c3 100644
--- a/lib/private/Share20/Manager.php
+++ b/lib/private/Share20/Manager.php
@@ -1317,9 +1317,12 @@ class Manager implements IManager {
 
 	public function getSharesInFolder($userId, Folder $node, $reshares = false, $shallow = true) {
 		$providers = $this->factory->getAllProviders();
+		if (!$shallow) {
+			throw new \Exception("non-shallow getSharesInFolder is no longer supported");
+		}
 
 		return array_reduce($providers, function ($shares, IShareProvider $provider) use ($userId, $node, $reshares, $shallow) {
-			$newShares = $provider->getSharesInFolder($userId, $node, $reshares, $shallow);
+			$newShares = $provider->getSharesInFolder($userId, $node, $reshares);
 			foreach ($newShares as $fid => $data) {
 				if (!isset($shares[$fid])) {
 					$shares[$fid] = [];