I feel like all C++ does these days is badly and very slowly copy other languages. It wouldn’t be a huge loss.

Wayland is basically the direct successor to X11. It basically fixes tearing, makes HDR possible, makes scaling way better, and is all-round just better prepared for the future. I’ve been using it for years without much trouble. The only issues I keep having are scripts which expect x11-specific tools to be there, but that seems to be quickly solving itself while people realize that x11 is quickly loosing support. If you want to try it, I recommend setting up a fresh installation of a distro with KDE, Gnome, Sway, or Hyprland, just to make sure all the right dependencies are installed.