Recently, I recommended to a friend that basic vim/vi is worth learning because it's a baseline that you can always trust will be there across different Linux systems.
They asked me what I used most on my home system, and the answer was emacs, but I was very clear that I was not recommending it. It's a particular kind of person who finds themselves at home in emacs, and for everyone besides those people, selling them on emacs would feel like persuading them to do hard drugs.
I think there's a good reason for that. If you're not as concerned about resource consumption (Emacs used to be called "Eight Megabytes and Constantly Swapping", back when 8MB was a lot), then there's no reason to avoid even more complex and resource intensive IDEs. People who wanted a complex editor, but in a relatively small footprint, stuck with some variant of vi.
Thus, vi found a stable evolutionary niche. It's a tardigrade.
I don't know, I used vim for like 6 years and then discovered, thanks to the power of evil and doom, how much better the vi experience is inside the context of emacs. With all the utilities and packages, it's worth the small additional burden of troubleshooting that it imposes.