TLDR: XFCE and Cinnamon devs are begging beginning to work on Wayland support.
XFCE wants to be Wayland ready with XFCE 4.20, which should be released near the end of 2024. Cinnamon wants to have Wayland as default by 2026. So, in theory at least, XFCE should be Wayland-ready before Cinnamon.
Look up who had his birthday at 4/20 (American style, so 20th April) and we’ll see if you’re still praising the number. It’s associated with more than just drugs.