I’ve been happily using RSS feeds for many years. I mostly use them for webcomics. I’ve got a bunch of different webcomic feeds. But I also use RSS to follow a bunch of low-traffic sites that I care about the content of but don’t want to have to manually visit just to see if there’s an update.
Also, I don’t have a google account, but I use RSS to follow a couple of youTube channels that I find interesting. (Again, stuff that rarely updates. eg. hbomberguy.)
This sounds like an antitrust legal problem…