Federation doesn't mean anything like that per se, you're talking detail of a particular implementation (I assume Mastodon but what do I know). Federation just

Federation doesn't mean anything like that per se, you're talking detail of a particular implementation (I assume Mastodon but what do I know). Federation just means multiple independent servers/domains can talk to each other, such as with email or Matrix, without the need for central authority (other than for discovering each other).