Reading the rest of the comments, I was wondering if I missed something. I use awesome-rss firefox extension [1] to discover RSS feeds on firefox. I maintain a list of feeds using elfeed-org and follow them using elfeed on Emacs. It's clean and extremely fast - especially while searching. Granted that it isn't really beginner friendly. But there are nice beginner-friendly alternatives like liferea too. Here are somethings that confuse me while reading these sorts of articles and discussions:
1. I don't see why they say browsers killed RSS/atom feeds. The only casualty was the discoverability of those feeds (like the discontinued live bookmarks on Firefox). But it is easy enough to restore it using extensions like awesome-rss, if you care enough. And I find a lot of dedicated feed reader applications catering to all sorts of users.
2. I don't understand how twitter and firefox killed RSS/Atom feeds. I find it extremely tedious to search for meaningful information with them. These sites are full of material designed to hold your attention captive while frustrating your efforts at finding worthwhile material. In contrast, RSS/Atom is information dense, easy to search, narrow and archive.
3. There is no dearth of RSS/Atom feeds on the web. Every good news website news site seems to host one. Almost all the blog engines and static site generators automatically generate them without any configuration or intervention. I find my feedlist growing very large overtime.
4. It also appears like many people associate RSS/Atom feeds with an online service like feedreader or (the dead) Google reader. My understanding is that you don't need an online service to aggregate feeds. An intermittently online desktop/mobile client can do it just the same. I haven't noticed an RSS/Atom client ever failing to aggregate a feed. The only thing I found missing was an automatic way to share and synchronize the feed list itself - though it's easy enough to implement with something like syncthing. Am I missing something here?
For me, twitter, FB etc are inferior to RSS/Atom feeds in every conceivable way - with the exception of lack of a discussion forum. I too find the death proclamation of RSS/Atom a bit of an overstatement.
[1] https://github.com/shgysk8zer0/awesome-rss
[2] https://lzone.de/liferea/