

Yes
https://steamcommunity.com/app/1675200/discussions/0/6126609705338539181/
Boot into Dekstop Mode, open the Gamepad configuration, with the controller connected, swap the order of the controllers so the 360 is the primary (or see if you can turn off the Deck controller) and set your configuration for desktop there.





Do you have 3 hours and $100?
https://www.ifixit.com/Guide/Steam+Deck+Screen+Replacement/148986