@sourcerer@bsd.cafe @smxi @vermaden @xfce Beyond the recent post to ports@ regarding #Wayland by Theo de Raadt that you already linked to, this is a good overview from earlier this year:

https://xenocara.org/Wayland_on_OpenBSD.html

(You may already be aware, but #xenocara is #OpenBSD's fork of #X11 and they try to keep it in sync and upstream as much as possible.)