I learned vim to, say, like, a low-moderate-ish proficiency? Basically forced myself to use it everywhere at work and home. After a few weeks of this... I went back to just vanilla IDEs/Editors.
For me, it was just a mix of not liking some stuff being handled in vim bindings and some stuff being handled by the IDE's bindings. I'm sure there's a bunch've plugins or customizations that'd smooth it over, but... vim also made me realize, I'm a pretty meat and potatoes text editing kinda guy. I like to shift lines, expand selections in a context aware way, and copy/paste. When I split panes, I do it with the mouse like a cave man. So the bulk of vims power was either lost on me, or felt like it got in the way of my minimal needs.
Also, I pretty much never ssh onto an individual machine to edit anything substantial these days, so... the selling point of having some bedrock transferable "everywhere" skill is kinda moot.
Your lack of proficiency in vim does not mean it is fundamentally slower.
> I only want to save other people the same trouble.
Pick one!
To be frank, it's annoying to go to a HN comments page and find the inevitable "popular tool x sucks because I didn't like it" comments. It seems like they're everywhere, on every link about every tool or product on HN. It's a buzzkill. Of course not everybody is going to like Vim. This link isn't trying to convince anybody of anything, it's just there for anybody trying to learn.
I realize my experience is n=1, my editing needs might not by typical or generalizable, etc. But I do think it is important to push back a bit on vim boosterism.