A federated version could provide a path away from addictive and polarizing content, and endless viewing.

Exactly, BlueSky demonstrates that it's not the form, but the engagement-at-any-cost feed algorithms without user-controllable knobs.

Bluesky proved no such thing. Merge bluesky with truth social and you’d be back to the same thing again. Both platforms are just full of people retreating into smaller bubbles, the underlying issues are still there just less common.