for a while i was exclusively using gnome3...without getting into a gnome2 vs gnome3 debate (gnome has been my default since 1.4, I found the gnome2 introduction just as jarring as the gnome3 introduction) --

Using soley gnome3, I feel like I was able to reach peak productivity. I was able to easily switch between tasks by allowing them all to be fullscreen, and just scrolling through the desktops with barely moving my thumbs. Great emacs keybinding support. Especially in emacs.

I've been fighting tooth and nail with macos, because they use both option & command with their keybindings. There's no winning no matter how I rebind.

Windows I mostly don't try. jetbrains has a good enough emacs keybinding that doesn't seem to get clobbered by the OS.