I often see comments of "everything works perfect in wayland" which makes me wonder how many features some people use. I've tried wayland a few times now and have always noticed small quirks. A few current examples: shading a window actually leaves an invisible section that can't be clicked where the window was, shading and other window activities being inconsistent across various window types (terminal, file manager, etc.), picture-in-picture mode of browsers doesn't maintain aspect ratio, picture-in-picture doesn't maintain "always on top" or position when enabling it (I've managed to fix the "always on top" by writing a rule to apply to windows with "Picture in picture" as the title, at least)