I used to run everything through the News app on Nextcloud. But it keeps breaking, so I switched back to just having an RSS reader on my phone.
Right now I am using Feeder, which is ok, but does not overly impress me.
Tried Flym as well, which is a lot nicer, but which, weirly, does not let me add feed via URL copy/paste and had issues with certain feeds.
Linux has a lot of desktop feed readers that look interesting, but I haven’t really tried one.