

You could’ve just ask ;)
To fix Xbox controller connect it to an Xbox console and update its firmware.
To fix some videos not playing in games, switch from stock Proton to GE-Proton, you can install ProtonPlus or ProtonUpQt from your desktop store for easy Proton installs, newly installed Proton versions show up after Steam restart.














They said there’s still a lot of work for them to do with SteamOS before it’s usable on all PCs. I wouldn’t hold my breath especially if you’re on NVIDIA, especially if it’s older than RTX-es. Besides, when SteamOS is ready for general public, the desktop Linux experience is elsewhere regardless of the distribution.