[482794793792894]

Filtering RSS depends on your RSS client.

On the desktop, QuiteRSS [1] is really good at it.

On Android, SpaRSS [2] isn't entirely terrible at it, though there might be better ones out there (I've essentially only looked on F-Droid).

[1] http://quiterss.org/

[2] https://github.com/Etuldan/spaRSS/blob/HEAD/README.md

[binaryapparatus]

I was mainly using https://newsbeuter.org/ and it has great filters. Just that action to reward (circumventing filters) does not require enough effort to prevent me from not looking outside of them.

The only thing I still look at is HN and, as we can see, that goes almost with success.