How are you going about joining different communities and managing your engagement? Are you only participating on the community on your instance? Are you joining and posting in as many instances that seem relevant?
Much like I ignored reddit usernames in the comment section, I tend to ignore which instance a post is coming from while scrolling. So I subscribe to all the relevant ones, and just scroll from my "subscribed" in my instance.
I agree but you miss out on smaller instances that are trying to create new communities. I think subbing to hashtags might be better (similar to Mastodon)