Just updated my Chromebook to chrome 83.0.4103.15 on beta and the stadia Controller is no longer working
Betas are always a little bit fragile. It seems that this is more related to the new ChromeOS version rather than Stadia. You might want to report this to the folks in the Chromebook community (https://support.google.com/chromebook/community?hl=en).
Do other controllers still work?
Thanks for the reply... Just tested an switch pro controller and it worked
I have the same issue