I’ve been using Linux on and off for about 15 years, but was never able to make the leap to using it full-time until PopOS. It’s been painless to use and does everything I need with only minor tweaks. Thank you System76! I can’t wait until the Cosmic DE is released.
(too bad about the name, though…)
When I used it, it was the ability to switch window tiling on and off on the fly, and for each of those tiles to have tabs. I’ve switched to another distro but I keep using GNOME because of that specific shell extension.