Bluesky is not the Fediverse.

Bluesky is singly controlled by one for-profit corporation, and in no meaningful way represents a decentralized hydra the way thay the Fediverse does.

BlueSky is liberal and leftist flavored/brand Twitter, brought to you by Jack Dorsey, headquartered in Seattle.

The Fediverse is actually meaningfully decentralized in practice, brought to you by a bunch of wierdo random coder people you've probably never heard of, a good number of them ardent communists, running and developing everything mostly entirely for free, headquartered nowhere and/or everywhere.