Blender’s Wayland support is not great because they’re doing stuff from scratch. They’re not using an existing toolkit like GTK, Qt, Electron, or even something like SDL to get Wayland support.
But if you’re using an existing toolkit things are much easier and support is automatically there, you just need to do testing to ensure everything works.
The common biggest things that still use Xwayland are Chromium based apps and programs running under wine/proton. Chromium has an experimental Wayland mode that works well enough, but definitely has some bugs, especially around windowing. Wine Wayland is in the works.