TLDR: XFCE and Cinnamon devs are begging beginning to work on Wayland support.
Keep in mind their time line is like 2 years.
Is that satire? Wayland is pretty great, and there isn’t really a concept of “compatible app” as Xwayland handles that.
Obviously apps that perform X functions directly (clipboard managers, screen recorders, etc.) will need to be ported or rewritten, as it’s a brand new display manager, but that would be the case with any non-X platform.