Nobara OS, Arch Linux and Pop!_OS beat Windows 11 by a slim margin in fps (delta 8) in Windows native games - Cyberpunk 2077, Forspoken, Starfield and The Talos Principle II. Windows 11 wins in Rachet & Clank.
ComputerBase’s testing was done on an all-AMD test rig, featuring a Ryzen 7 5800X (non-3D) and a Radeon RX 6700 XT.
Update: Windows 11 wins in one game.
Looks like KDE Plasma 6 is going to default to Wayland, so I’ll probably give it another shot when it comes out (in Feb I think?). I’m currently on GNOME because of weird KDE Wayland issues on my AMD card (maybe it’s no longer a thing, IDK). I don’t have a strong preference between them, but my kids use my computer and I think KDE is probably easier for them.
From my experience default KDE is more windows-like so it can help with transition for Windows users