diff --git a/IONOS b/IONOS
index 724d70e9626c9..0d00d3b21695f 160000
--- a/IONOS
+++ b/IONOS
@@ -1 +1 @@
-Subproject commit 724d70e9626c92e359a4201ea4d1b6a88a92ada9
+Subproject commit 0d00d3b21695f48eea6e3fbdd766f6153536037a
diff --git a/apps/files/lib/Service/UserConfig.php b/apps/files/lib/Service/UserConfig.php
index c233996579379..086d54f4b0ea2 100644
--- a/apps/files/lib/Service/UserConfig.php
+++ b/apps/files/lib/Service/UserConfig.php
@@ -6,6 +6,7 @@
 namespace OCA\Files\Service;
 
 use OCA\Files\AppInfo\Application;
+use OCP\AppFramework\Services\IAppConfig;
 use OCP\IConfig;
 use OCP\IUser;
 use OCP\IUserSession;
@@ -52,9 +53,11 @@ class UserConfig {
 
 	protected IConfig $config;
 	protected ?IUser $user = null;
+	protected IAppConfig $appConfig;
 
-	public function __construct(IConfig $config, IUserSession $userSession) {
+	public function __construct(IConfig $config, IUserSession $userSession, IAppConfig $appConfig) {
 		$this->config = $config;
+		$this->appConfig = $appConfig;
 		$this->user = $userSession->getUser();
 	}
 
@@ -115,7 +118,7 @@ public function setConfig(string $key, $value): void {
 			throw new \InvalidArgumentException('Unknown config key');
 		}
 
-		if (!in_array($value, $this->getAllowedConfigValues($key))) {
+		if (!in_array($value, $this->getAllowedConfigValues($key), true)) {
 			throw new \InvalidArgumentException('Invalid config value');
 		}
 
@@ -146,6 +149,13 @@ public function getConfigs(): array {
 			return $value;
 		}, $this->getAllowedConfigKeys());
 
-		return array_combine($this->getAllowedConfigKeys(), $userConfigs);
+		$userConfigsMerged = array_combine($this->getAllowedConfigKeys(), $userConfigs);
+
+		// override user configs with app configs
+		$configs = array_map(function (string $key) use ($userConfigsMerged) {
+			return $this->appConfig->getAppValueBool($key, $userConfigsMerged[$key]);
+		}, $this->getAllowedConfigKeys());
+
+		return array_combine($this->getAllowedConfigKeys(), $configs);
 	}
 }
diff --git a/apps/files/tests/Service/UserConfigTest.php b/apps/files/tests/Service/UserConfigTest.php
new file mode 100644
index 0000000000000..fb078568ed4fc
--- /dev/null
+++ b/apps/files/tests/Service/UserConfigTest.php
@@ -0,0 +1,226 @@
+<?php
+
+/**
+ * SPDX-FileCopyrightText: 2024 STRATO AG
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+namespace OCA\Files\Tests\Service;
+
+use OCA\Files\AppInfo\Application;
+use OCA\Files\Service\UserConfig;
+use OCP\AppFramework\Services\IAppConfig;
+use OCP\IConfig;
+use OCP\IUser;
+use OCP\IUserSession;
+
+/**
+ * Class UserConfigTest
+ *
+ * @group DB
+ *
+ * @package OCA\Files
+ */
+class UserConfigTest extends \Test\TestCase {
+	/**
+	 * @var string
+	 */
+	private $userUID;
+
+	private $userMock;
+
+	/** @var IConfig|\PHPUnit\Framework\MockObject\MockObject */
+	private $configMock;
+
+	/** @var IUserSession|\PHPUnit\Framework\MockObject\MockObject */
+	private $userSessionMock;
+
+	/** @var IAppConfig|\PHPUnit\Framework\MockObject\MockObject */
+	private $appConfigMock;
+
+	/**
+	 * @var UserConfig|\PHPUnit\Framework\MockObject\MockObject
+	 */
+	private $userConfigService;
+
+	protected function setUp(): void {
+		parent::setUp();
+		$this->configMock = $this->createMock(IConfig::class);
+		$this->appConfigMock = $this->createMock(IAppConfig::class);
+
+		$this->userUID = static::getUniqueID('user_id-');
+		\OC::$server->getUserManager()->createUser($this->userUID, 'test');
+		\OC_User::setUserId($this->userUID);
+		\OC_Util::setupFS($this->userUID);
+		$this->userMock = $this->getUserMock($this->userUID);
+
+		$this->userSessionMock = $this->createMock(IUserSession::class);
+		$this->userSessionMock->expects($this->any())
+			->method('getUser')
+			->withAnyParameters()
+			->willReturn($this->userMock);
+
+		$this->userConfigService = $this->getUserConfigService(['addActivity']);
+	}
+
+	/**
+	 * @param array $methods
+	 * @return UserConfig|\PHPUnit\Framework\MockObject\MockObject
+	 */
+	protected function getUserConfigService(array $methods = []) {
+		return $this->getMockBuilder(UserConfig::class)
+			->setConstructorArgs([
+				$this->configMock,
+				$this->userSessionMock,
+				$this->appConfigMock,
+			])
+			->setMethods($methods)
+			->getMock();
+	}
+
+	/**
+	 * @param string $uid
+	 * @return IUser|MockObject
+	 */
+	protected function getUserMock($uid) {
+		$user = $this->createMock(IUser::class);
+		$user->expects($this->any())
+			->method('getUID')
+			->willReturn($uid);
+		return $user;
+	}
+	protected function tearDown(): void {
+		\OC_User::setUserId('');
+		$user = \OC::$server->getUserManager()->get($this->userUID);
+		if ($user !== null) {
+			$user->delete();
+		}
+	}
+	public function testThrowsExceptionWhenNoUserLoggedInForSetConfig(): void {
+		$this->userSessionMock = $this->createMock(IUserSession::class);
+		$this->userSessionMock->expects($this->any())
+			->method('getUser')
+			->withAnyParameters()
+			->willReturn(null);
+
+		$this->expectException(\Exception::class);
+		$this->expectExceptionMessage('No user logged in');
+
+		$userConfig = new UserConfig($this->configMock, $this->userSessionMock, $this->appConfigMock);
+		$userConfig->setConfig('crop_image_previews', true);
+	}
+
+	public function testThrowsInvalidArgumentExceptionForUnknownConfigKey(): void {
+		$this->expectException(\InvalidArgumentException::class);
+		$this->expectExceptionMessage('Unknown config key');
+
+		$userConfig = new UserConfig($this->configMock, $this->userSessionMock, $this->appConfigMock);
+		$userConfig->setConfig('unknown_key', true);
+	}
+
+	public function testThrowsInvalidArgumentExceptionForInvalidConfigValue(): void {
+		$this->expectException(\InvalidArgumentException::class);
+		$this->expectExceptionMessage('Invalid config value');
+
+		$userConfig = new UserConfig($this->configMock, $this->userSessionMock, $this->appConfigMock);
+		$userConfig->setConfig('crop_image_previews', 'foo');
+	}
+
+	public function testSetsConfigSuccessfully(): void {
+		$this->configMock->expects($this->once())
+			->method('setUserValue')
+			->with($this->userUID, Application::APP_ID, 'crop_image_previews', '1');
+		$userConfig = new UserConfig($this->configMock, $this->userSessionMock, $this->appConfigMock);
+		$userConfig->setConfig('crop_image_previews', true);
+	}
+
+	public function testGetsConfigsWithDefaultValuesSuccessfully(): void {
+		$this->userSessionMock->method('getUser')->willReturn($this->userMock);
+		$this->configMock->method('getUserValue')
+			->willReturnCallback(function ($userId, $appId, $key, $default) {
+				return $default;
+			});
+
+		// pass the default app settings unchanged
+		$this->appConfigMock->method('getAppValueBool')
+			->willReturnCallback(function ($key, $default) {
+				return $default;
+			});
+
+		$userConfig = new UserConfig($this->configMock, $this->userSessionMock, $this->appConfigMock);
+		$configs = $userConfig->getConfigs();
+		$this->assertEquals([
+			'crop_image_previews' => true,
+			'show_hidden' => false,
+			'sort_favorites_first' => true,
+			'sort_folders_first' => true,
+			'grid_view' => false,
+			'folder_tree' => true,
+		], $configs);
+	}
+
+	public function testGetsConfigsOverrideWithUserValuesSuccessfully(): void {
+		$this->userSessionMock->method('getUser')->willReturn($this->userMock);
+		$this->configMock->method('getUserValue')
+			->willReturnCallback(function ($userId, $appId, $key, $default) {
+
+				// Override the default values
+				if ($key === 'crop_image_previews') {
+					return !$default;
+				} elseif ($key === 'show_hidden') {
+					return !$default;
+				}
+
+				return $default;
+			});
+
+		// pass the default app settings unchanged
+		$this->appConfigMock->method('getAppValueBool')
+			->willReturnCallback(function ($key, $default) {
+				return $default;
+			});
+
+		$userConfig = new UserConfig($this->configMock, $this->userSessionMock, $this->appConfigMock);
+		$configs = $userConfig->getConfigs();
+		$this->assertEquals([
+			'crop_image_previews' => false,
+			'show_hidden' => true,
+			'sort_favorites_first' => true,
+			'sort_folders_first' => true,
+			'grid_view' => false,
+			'folder_tree' => true,
+		], $configs);
+	}
+
+	public function testGetsConfigsOverrideWithAppsValuesSuccessfully(): void {
+		$this->userSessionMock->method('getUser')->willReturn($this->userMock);
+
+		// set all user values to true
+		$this->configMock->method('getUserValue')
+			->willReturnCallback(function () {
+				return true;
+			});
+
+		// emulate override by the app config values
+		$this->appConfigMock->method('getAppValueBool')
+			->willReturnCallback(function ($key, $default) {
+				if ($key === 'crop_image_previews') {
+					return false;
+				} elseif ($key === 'show_hidden') {
+					return false;
+				}
+				return $default;
+			});
+
+		$userConfig = new UserConfig($this->configMock, $this->userSessionMock, $this->appConfigMock);
+		$configs = $userConfig->getConfigs();
+		$this->assertEquals([
+			'crop_image_previews' => false,
+			'show_hidden' => false,
+			'sort_favorites_first' => true,
+			'sort_folders_first' => true,
+			'grid_view' => true,
+			'folder_tree' => true,
+		], $configs);
+	}
+}