Because RSS readers are coming up in comments, if you are using one, which one would you recommend? For Linux AND Android?
Self-hosted FreshRSS to grab the content and reading on a Proper Browser. NetNewsWire as a mobile reader that connects to FreshRSS.
I run Miniflux on a Digital Ocean droplet, and Miniflutt on my phone.
Feeder on Android is my pick. Thunderbird does RSS, and I already use it for email, so it's a nice all in one on Linux. Both can use OPML files to import/export your feeds.