Alt text:
Twitter post by Daniel Feldman (@d_feldman): Linux is the only major operating system to support diagonal mode (credit [Twitter] @xssfox). Image shows an untrawide monitor rotated about 45 degrees, with a horizontal IDE window taking up a bottom triangle. A web browser and settings menu above it are organized creating a window shape almost like a stepped pyramid.
Edit: alt text
in wayland the compositor is king they can do mhatever they want with the screen
https://m.youtube.com/watch?v=ZBLLC5fOy98&list=PLb7YRKEhWEBUIoT-a29UoJW9mhfzjpNle&index=2&pp=iAQB
Time to ask the wayfire devs to implement fractional screen rotation.