KDE Plasma Wayland, I'm using it for gaming mainly and occasionally for VR.
Pros:
- supports DRM leasing mandatory for wired VR headsets
- supports tearing (also in windowed apps but requires an additional setting) which reduces input latency in games
- usually all the new fancy features, ex. HDR, appear quickly
- decent support for fractional scaling (handy on laptops)
Cons:
- you might encounter bugs. While Plasma 6 has been a much better experience as opposed to older versions of it, there are still some bugs here and there appearing between the updates. As of this writing thought I can't recall any bugs on my system.