Im considering spending some serious time learning one of the above. Two principle engineers I work with exclusively use them, and watching them work is incredible, the speed they move and get things done is pure wizadry. Can anyone learn this skill? For what it’s worth, the alternative is learning VScode. I’ve exclusive used Android Studio in my career.
What I suggest is know how to use nano.
Vi and Emacs only look at those if your going to use them a lot. Otherwise you will forget. I have used both at times. It is very personality based to. Vi and now Vim people will say how great it is. On the other hand not for me, I think they are nuts. I favor emacs but even then I really favor nano. Just different perspectives.