Isn't wayland just soem protocol? so did the ex X11 devs wrote soem specifications and then soem went to GNOME< some to KDE and others are just editing the specifications ?
I think the issue is that there is no wayland library that a DE can use so everyone is forced to implement it as part of the DE , so the end result is a lot of missing features and incompatibility.
I could be wrong, I still run Linux but I decided years ago to stop following the Linux drama, I will use Kubuntu LTS and hopefully when it drops X11 the Wayland implementation and the X11 fallback would be usable.