Benchmarks comparing Desktop Environments performance
I know it’s just for Ubuntu, but I didn’t find a similar and up-to-date benchmark for Arch based distros. The most interesting results are the GNOME ones, there’s a big FPS drop when it uses Wayland and not Xorg. I don’t know the technical differences between them, but it’s an interesting test. And it seems that KDE is not that good too for gaming too, at least not with Ubuntu.
I was expecting a better performance for Xfce, that’s strange.