I've always heard these were fundamental problems because of how X is architected. Something like everything assumes the desktop is a single, contiguous grid.

I've always heard these were fundamental problems because of how X is architected. Something like everything assumes the desktop is a single, contiguous grid. Everyone built tooling top of X and tried to mitigate the problems. I thought it was odd when Apple got a lot of heat for not using X and writing their own thing. It sounds like Apple had evaluated X and determined it wouldn't fit their needs. The same thing happened when things like Wayland started getting written.