Having structured feeds of any kind is already a niche and much appreciated when it happens. How to call them correctly technically based on some specs is not the hill to die on.
We call them RSS feeds, RSS reader apps even if it might be implemented as an Atom feed.
I have trouble seeing how that helps anyone. It’s not like ‘RSS’ is a widespread term the way ‘Word’ or even ‘Mastodon’ are (and even there I’d argue it’s worthwhile to use technically more correct terms). Why not just use ‘news feed’ as the general term? If you don’t care about the protocol in the first place, that’s far more descriptive and correct, no?
The reason I think it matters is that, because people keep on using the name of the wrong format, people keep on using that wrong format when they want to implement feeds. Where if they had known about Atom, or that podcast feeds are the only reason not to use Atom, they would gladly have used Atom.