I still perfer the TT-RSS, now on github without Fox (The dev most people had issues with).

The android app isn't maintained at the moment but it's still one of the best rss apps I have ever used

I can confirm the TT-RSS app (found on F-Droid) is very good. I have used it for years. On the other hand, the web app is not very good, and each time I wanted to read articles on my computer from the web interface, I encountered huge issues (for some reason, the "right click / mark as read" never correctly worked on my computers, or at least with huge lags of several seconds). When my free TT-RSS provider closed, I decided to switch to FreshRSS and could compare several apps for Android; I finally set up the following workflow: free FreshRSS account + "Read You" (found on F-Droid also), and managed to achieve a very similar workflow than previously (with a much better web app).