If you are going to redefine feature parity X11 to mean feature parity with the much smaller core of features that you believe ought to be in wayland vs part of some external package like gnome/sway/kde it would seem that you can trivially argue yourself into deciding you have arrived no matter how impoverished the feature set you choose and how meaningless such a conclusion ultimately is.

Nobody wants to decide their interface based on a combination of gpu driver, apps, features are fully functional.

The actual question at hand is how many of the now more fragmented set of platform are feature complete and to what degree. Comparing apples to oranges is a waste of your time and my time.