Thanks for the clarification. That makes more sense now.

I host my own GoToSocial instance, with only me as it's single user. Doesn't get much more decentralized than that.

I guess it's easier to move your identity to a different PDS on Bluesky, but for me Bluesky doesn't count as decentralized as long as there's only one single relay. You may own your identity, but currently Bluesky (the company) owns the network.