> Many people talk about vim lately, probably the most I've seen and I'm still not sure why.

Extrapolating from personal experience, I think this might be down to Covid WFH where more people have had to ssh into remote machines and may need to edit files so might choose to use vim as it’s easily available. And vim is something that I find is better learned progressively where you pick up 1 or 2 tricks every week or something so those people might have been able to pick it up over the last year or so and are now evangelizing it.