+1 for feeder. A really nice feature it has it it's reader mode. Basically fetches the webpage for you and strips it down to pure html and gives a pleasant reading experience without any javascript stuff, because we know everyone loveees auto playing videos that scrolls with the page. Kind of like a reader mode in a browser, but within the app itself.
I imagine that there are far fewer people who use RSS now than there were 10 years ago. The rise of social media and shorter attention spans may have something to do with that.
Personally, I'm in the RSS cult, using Tiny Tiny RSS.
For me, it's my Lemmy Subscribed/Active feed. I got rid of HN and Reddit as soon as I figure out how to use it. It's pretty magical. The only other thing I have in my reader now is YouTube channel feeds.