I use miniflux, and flux news app on android. It looks nice and works well (i posted about it some time ago lemmy.world/post/9574514 )

I am not missing any features, but I am not doing anything fancy. I have grouped the rss feeds, if that counts as filtering

I have used it for a long time now, and I don’t have an urge to try and find something better, like I do for some other self hosted stuff.