I think the concept of scoping (like map part of map/reduce) sits above this. Scope by relay/s, maybe a list/group/channel, by N degree following network, etc.

Some of these are sorting/ordering focused, while some could also be a mix of sort/order and/or filtering/dropping (like trustrank below M).

I think full time filters should exist (regex, keywords, blocklists, muted, etc), and scopes or algos can likely filter additional (but must filter your full time filters).