This doesn’t address your question directly OP, but something I’ve been doing here (as a sad former redditor of over a decade) is to relentlessly upvote anything I like or that contributes to communities I’m subscribed to. I was more of a lurker on reddit but I think if we can push more niche communities and posts into the “everything” feed this problem will hopefully resolve itself eventually through organic growth.
This doesn’t address your question directly OP, but something I’ve been doing here (as a sad former redditor of over a decade) is to relentlessly upvote anything I like or that contributes to communities I’m subscribed to. I was more of a lurker on reddit but I think if we can push more niche communities and posts into the “everything” feed this problem will hopefully resolve itself eventually through organic growth.