Maybe not intended to be, but they work fine as one [ime]

Revolt can be self hosted, but i’d still consider it centralized, since when we are talking about “revolt” we are talking about the main instance. I haven’t seen another instance sadly

However the devs are working on E2EE, and they [no promises] said they’ll think about implementing federation. I’ll keep my eyes on it, because if it does i’d definitely be excited for that