[DrScientist]

Why oh why for example can't you resize the System Settings window?

If you are in the wallpaper view - there is content off the screen to the right, but no visible scroll bar, nor ability to resize. The only way to scroll appears to use the keyboard to navigate the wallpapers ( which has the side effect of setting them ).

I don't expect these kind of UI issues on MacOS.

[DrScientist]

On the other hand - the transition from Intel to ARM, which has totally transformed their hardware offering, was pretty seamless and is down to large part good software.