Me, I first wrote programs in AMOS Basic, which was certainly not CUA either (I remember shift-backspace erased a whole line, which could be really frustrating). I've done enough learning of tiresome nowhere-else UIs... back when I played Nethack, I would of course insert a big S anytime I tried to save in another program for a while. Nethack was at least fun enough to make it worth it.

VSCode is fast for stuff I do in editors which is slow elsewhere (thanks in no small part to Mr. Gallant!) and better at doing anything an IDE used to do, than most IDEs. Does vim support full-featured language servers/tree-sitters these days?