PS5 DualSense controller can be used to play Xbox Cloud Games via Android
Austin Evans to the victory.

PS5 is all set to launch in the upcoming month for selected countries on 12th of Nov with a worldwide launch on 19th. However, few personalities already have access to the console and its peripherals. Of which one is the YouTube reviewer Austin Evans, who spent some time prior before the release. Austin was able to test limits of the 'DualSense' controller.
In the following video, Austin connects the PS5's DualSense Controller to Android via Bluetooth without any hassle, just like that without needing an extra app. Not only he just connected the controller to the phone but cruised through the UI with it as well.
Further, Austin demonstrated playing Xbox Cloud Games on his PIXEL 5 Android smartphone with the DualSense Controller connected. He used the buttons and analog stick to navigate and play. Austin did mention that he was not able to feel any haptic vibration feedback and Its still uncertain if the DualSense's touchscreen works or not.
Nevertheless, it is impressive how the standard PS5 console controller is working without any extra efforts with just a simple connection.