I know exactly what you're talking about. I am a die-hard vimmer and used vim plugins in every editor/IDE/browser/shell/multiplexer/WM/etc. I use vim bindings system-wide. I control my music, switch between apps, swap and resize windows - all without lifting a finger from the home-row.

I spent almost a decade living in IntelliJ. I had many direct conversations with Andy Vlasovskikh (he's the maintainer of IdeaVim then). Gary Bernhard (Destroy All Software, wat guy) once said: "there's no vim-mode, there's only Vim" in the sense that no single editor or IDE, not a single vim emulation layer properly works, they all have glaring deficiencies - to the point that it can drive any experienced vimmer truly mad.

With one notable exception. Evil-mode in Emacs is just wonderful. It's the best vim-emulation layer, to a certain degree it works even better than in Vim/Nvim. Weirdest thing - it makes you forget it's not a built-in feature of Emacs. I'm honestly very happy with it, because I don't know, otherwise, I might have never convinced myself to ever give Emacs a try.

These two ideas - vim modality and the grand idea of Lisp - are possibly the two best things that I am forever grateful to my younger self for forcing me to learn. I can't even comprehend being a professional software developer and not grokking them.