PC: Turn on the controller, press the sync button, open PC's Bluetooth settings, and pair when the controller appears. Alternatively, you can instantly connect a controller to a console or PC with ...

The Steam Deck is arguably one of the best handhelds out there, but if you want better controls, you might want to connect your Xbox controller.

So, it might be worth trying this driver uninstall fix even if your non-Xbox controller is causing problems via Bluetooth since the latest update.