Hey, where is Emacs?
I use Emacs for pretty much everything, coding or not. I read my mail there, organise my notes, handle our GitLab issues and Merge Requests (and actually, do almost everything Git related, too), write code, run tests, and more, all that from within my trustworthy OS editor. Because it works well, and this way i donʼt have to learn different key bindings for different tasks.