I am Using Bazzite Desktop with AMD CPU/GPU.
My controller (Xbox Series via USB dongle, not Bluetooth) is recognized correctly by both the Bazzite system and Steam. Steam -> Settings -> Controller - Test Device Input. Everything works perfectly here; every input is displayed correctly. However, no controller input works in any game except for the Xbox menu button. The same applies to non-Steam games, by the way.
I have already tried enabling and disabling Steam inputs. No difference.
I would be very grateful for any help.