That's not my experience. I switched fron XP to Ubuntu 8.04 and I remember how the DE felt much better. I could do everything with half the clicks. Windows control panel dialog were so clunky in comparison. Four years later I discovered that KDE shares that clicks problem with Windows and I went back to Gnome after a few months. I'm on Gnome flashback now and specifically a Gnome 3 tweaked to look like Gnome 2 from 10.04 plus Compiz for the 3D desktop transitions (the cube).

I used Windows 8 and 10 on friends' laptops and I'm not impressed. BTW, everybody hated 8 because of the changes in the UI. They tend to be OK with 10, but it looks so old to me, like a window manager for some 16 colors home computer in the 80s (I used them back then) with 1080p resolution. Control Panel's dialogs in most cases are still the same from XP and I can't understand why they didn't redesigned them. They feel more and more out of place in the UI.

Mac's UI is somewhat similar to Gnome (actually the other way around, I think) but I never liked the menu at the top and the top bar. That's why I removed both from my Gnome and I never bought a Mac since the very beginning (I moved everything from the top bar to the bottom one.) Mac's UI feels zippier though, that's the advantage of building both the hw and the sw.