This has a nasty side effect barely related to the family features… it killed the Family View pin. The only thing that could coax bloody GeForce Now to sync with Steam cloud instead of killing the session instantly as you quit the game. There’s no other feature that can lock games from running like Family View did, isn’t there?
AFAIK Rosetta deals with Intel Mac apps, not Windows. If this handles Windows games like Proton does… pretty big news!