Underrated reply. Twitter is definitely a place where a bunch of people follow a small group of famous people and content creators almost like lemmings. (The irony that lemmy isn't like despite users being called lemmings isn't lost on me)
Mastodon is a bit better, but also strangely seems to be focused on big names and groups as well, just different ones and to a lesser extent. It's one of the reasons I spend less time on there and more on Kbin / Lemmy.
On the positive side, it's from Mastodon that I learned about Kbin and Lemmy to begin with.