I expect as federation becomes more common we'll see patterns like user servers, community servers, archive/redundancy servers, and eventually it'll be less clustered. My instance that this version of me is on is much snappier than lemmy.world but it's also federated differently and that's very obvious when searching or browsing all

Theoretically, yes. Practically, maybe not so much as a ton of these smaller instances are consolidated on a just a handful of hosting providers.