is also decentralized and is federated, meaning it is moving toward a future where users “own” their audiences and can port them elsewhere (you can, and many do, argue about the details here, and about the differences between ActivityPub, which Mastodon uses, and the AT Protocol, which Bluesky uses).
Best coverage yet for that alone
At least maybe some more regular people will learn about decentralization (and alternative ways there) from this mass adoption?