You are basing your conclusions on a single blogpost. Measurements from other people show that X11 wins in some cases, Wayland wins in other cases, there isn't a clear winner.
https://zamundaaa.github.io/wayland/2021/12/14/about-gaming-...
https://zamundaaa.github.io/wayland/2021/12/14/about-gaming-...
Even according to your blog post uncomposited X11 wins in all cases (or is tied within the error of one millisecond). It especially sweeps the floor with immediate rendering.
(And no, composition is not just for 3D cube effects or anything like that. Although it certainly enables them.)
MacOS have moved on, Windows have moved on, Linux should do the same.