@gigachad Yes, Lemmy really is a kind of special case in the Fediverse. From Lemmy, you can only post or comment in threads that are in groups (i.e. Lemmy, Piefed, mbin, Friendica groups) and can't follow individual accounts.
Of the others, groups are the exception, while Lemmy specialises in them. In this respect, Lemmy can do less here, but it is more clearly structured.