Does anybody have any recommendations for FOSS RSS readers with actual content surfacing features? So many RSS feeds are full of junk (this is particularly a problem with feeds with wildly disparate posting frequencies) and I've always felt they'd be a lot more useful if people were putting more effort into a modern way to sort through extremely dense feeds.
More granular subcategories are absolutely not an answer to this problem that I'm satisfied with. I don't mind having a handful of timelines to check but if I'm getting into double digits there's a problem.