A whole bunch of things for me. Many already listed here, but I'd add two: 1) macOS's high quality text rendering. I keep checking in on Linux and despite installing all manner of weird hacks over the years, I've never got text looking as good as on the Mac in every app. 2) I've not found anything vaguely as good as Screenflow on Linux either for recording the screen and audio live and editing all in one app.