I have never used NeoVim, but I am genuinely flabbergasted at the idea of not considering it a bug that :! is not interactive. I would consider that very close

I have never used NeoVim, but I am genuinely flabbergasted at the idea of not considering it a bug that :! is not interactive. I would consider that very close to fundamental functionality; I know that lacking it would make me stumble from time to time, and I’ve seen various other Vim users and plugins depend on it not irregularly also. I’m not confident I know just what’s meant by “gvim did not support this until 1-2 years ago”. Opening the command in a Vim terminal, sure, that’s recent functionality (as is the whole concept of a Vim terminal), and opt-in at that, but on MS-Windows at least, from time immemorial :! opened the command in a separate console window, meaning it always worked. Not sure what it does on other platforms, as I’ve long used terminal Vim exclusively. Also it sounds like they haven’t actually fixed this, just implemented the equivalent of Vim’s guioptions+=!, which… well, that’s definitely not how I want it to work.