Speak for yourself. Spaces in macOS is one of the best window management features I've encountered. Of course, it's been common in Linux window managers, but since I use a Mac for work, its a godsend that spaces and multiple desktops is implemented. I'm a developer, and being able to organize my windows and split them (fullscreen isn't limited to one app per screen anymore) is so freaking useful that I feel lost whenever I try to use Windows again.