Running #bazzite with KDE - disabling adaptive sync and enabling screen tearing is one button in the settings and Overwatch 2 feels as it does on Windows.
After remembering the correct Proton GE version and some shader compiling. Don’t use latest, 12.25 works well.
Not sure if Gnome still doesn’t implement the Wayland protocols or just doesn’t have a UI for these two options. But the difference is noticeable.
Right now I’d recommend KDE for anyone who “just wants to game”.