I have an Xbox controller connected to my Windows 10 PC through Bluetooth. Stadia doesn't recognize it, but when it's connected through USB cable, it recognizes. The Bluetooth connection seems fine because I went to the gamepad tester site and everything worked correctly.
@kacperspace1000 Are you using a 3rd party Xbox controller? Currently Stadia only support official Xbox controllers, and if you're using 3rd party, there might be some unknown behavior.
I also suggest updating your Chrome browser if you haven't got the latest version and see if it will help.
You can see the supported controllers from the list below. If you can get access to one, I suggest trying out and see if it work
Stadia-compatible gamepads and screens
@kacperspace1000 Are you using a 3rd party Xbox controller? Currently Stadia only support official Xbox controllers, and if you're using 3rd party, there might be some unknown behavior.
I also suggest updating your Chrome browser if you haven't got the latest version and see if it will help.
You can see the supported controllers from the list below. If you can get access to one, I suggest trying out and see if it work
Stadia-compatible gamepads and screens