So with X there is an official implementation and a window manager implements a very small amount of functionality on top of that. Wayland has basically nothin

So with X there is an official implementation and a window manager implements a very small amount of functionality on top of that. Wayland has basically nothing anyone would use its merely a specification for each window manager to write their own implementation of X AND a window manager. 15 years in there is now a library or two to make it easier but its still none the less writing X + wm.