>The Linux windowing system is currently a gawd-awful mix of poorly mixed layers.

Yes, because the mix of X and Wayland being added to that is really going to improve the situation...

Like it or not, that system of layers is what makes linux feasible and viable in the first place. Each program/project doing specializing in one particular thing means each programmer specializes in one particular thing. If you want a monolith then you have plenty of other options, but linux is done this way by design, not accident.