One of the big issues with Wayland is the (intentional) fragmentation. Each "Wayland compositor" is really its own window system, with its own peculiarities. Th

One of the big issues with Wayland is the (intentional) fragmentation. Each "Wayland compositor" is really its own window system, with its own peculiarities. This forces applications that would have been trivial to implement on X to either limit support to only a single "compositor", or suffer explosion of compositor-interfacing code. Apart from that, Wayland is very opinionated, it's basically intended to cater to 70% of users, while flipping off the rest.