It may be the future, but it's unusable for me.
I have a high dpi screen. Upscaling does not perfectly work for me in every program, but simply setting it to Full HD does work and looks fine.
However, when I set it to the lower resolution in Wayland, I have 50% of the display active with black bars all around.
So far, there seems to be no fix for this?
Same thing happens if you start older, lower resolution fullscreen apps (retro games and such).