The single thing that keeps me with macOS is a universal key that is truly universal. Apps on mac are built around the command key. The windows key and the linux super key don't have anywhere near the consistency across applications that the command key does. `cmd + shift + [` flips through tabs in every application I have. In linux, it works only if I set up the keys for that application, and only if that application has the ability to set those keys. I spend more time in xkb config files than I do programming.