I use it for a lot of the same things folks have already said. Following news (Google News does RSS), some tech blogs, news releases for the things I’m invested in, some GitHub releases, the Lemmy communities I subscribe to (including this one), etc. I still kinda follow RSS feeds on Reddit, but that’s probably dead in a week. I’ve also used RSS-Bridge to build feeds for things that don’t automatically come with one, like some things on Lemmy that I wish did.