Steam Deck OLED / Protontricks Error Fix / Works Also with SteamOS Beta / How to Fix Guide
This fix also works with SteamOS Beta
Add these lines in Konsole:
flatpak remote-add --if-not-exists flathub-beta https://flathub.org/beta-repo/flathub...
flatpak install flathub-beta com.github.Matoking.protontricks