I don’t know how well lemmy sorts by “level of interaction relative to number of subscribers”. For instance on r/all, you’d see a post with 15 upvotes on r/really-specific-thing-from-the-town-i-live-in-with-500-subs right next to a r/askreddit thread with 30k upvotes. In order to see smaller communities, it seems like I have to be on new or hot, but it never seems to make its way up to active.
Really its just devolving into a fascinating experiment in how much momentum it requires people to leave a platform en masse in 2023.