- I have used vim for many years (15 maybe?), and once you have passed the initial learning curve (not so terrible, after you keep learning cool stuff even after years of use), it's useful for everything with the same shortcuts. I would actually spend more time learning something else like an new IDE. At the end, I have probably saved a lot of time by sticking to (neo)vim instead of following the latest trend.
- I like terminals because there is nearly nothing disturbing you, and it's usually quick to have something
- there are many little features that looks like nothing but are really really useful when you use them. I'm a big fan of C-a / C-x to increment / decrement a number, coupled with https://github.com/nishigori/increment-activator it's super useful (to change a boolean, a date, a number, etc). The "." to repeat last command, the "*" to search what is under the cursor are other great features. An occasional macro made with "q" may save a lot of time when you need to do a repetitive task, for refactoring for instance, and you can even repeat them according to some patterns with ":g". I'm not sure if those features have handy equivalents on other IDEs.
- I didn't spent that much time doing my config, just adding little changes here and there when necessary, over the years I've got a environment really adapted to my taste.
- I'm currently doing mostly Python, and vanilla (neo)vim is normally good enough, but I'm using Coc (https://github.com/neoclide/coc.nvim) for a little while, and it add a lot of helping stuff easily. Pyright + snippets are useful.
- when something cool happens somewhere else, you often have somebody adapting it to vim. I can use snippets and emmet which are occasionally very useful.
At the end, I don't feel the need to change, it works well, and over the time I could add some neat features to improve it (snippets, emmet, CoC, tagbar, etc). I'm not sure if changing to something like VScodium would worth the time to learn something new (and I like working with terminals).