Federation with decentralization is my favorite anti-enshittification defense. It's powerful as hell. It's the main reason I endorse Free Our Feeds, an effort to (among other things) build more Bluesky servers to decrease the centralization and give users dissatisfied with Bluesky management an alternative:
https://pluralistic.net/2025/01/20/capitalist-unrealism/#praxis
That said, decentralization and federation are not perfect, set-and-forget defenses.
18/