I have a problem with having my controller to work on Stadia. I bought the new xbox controller with the USB-C cable and wanted to play through my Macbook Pro (M1 chip). It connects through bluetooth and shows that is linked on stadia, but none of the controls work when I start the game. Could it be that there is something wrong with the controller? Because the controller works perfectly on console and pc.
Did you check for firmware or software updates from the manufacturer for bug fixes and improvements? Did you check for update on Chrome?
Yes, everything is up to date, even the controller. Could it be that there is something wrong in the new updates or in the macOS Big Sur?