The need for this bool is to know when another User has initialized your animator. This bool is False by default but it is briefly made true locally upon having had your animator initialized remotely. This means that every time another user initializes your animator, it briefly flips this bool to True and then it returns to resting False; similar in behavior to a Trigger parameter. Creators can account for their individual needs beyond that bool flip by themselves.

This would be invaluable for anything that would be dependent on late-joiners syncing anything beyond static parameter values. If, for example, something you did had a series of events rather than a single static event, you could then sync a late-joiner into the series of events properly without them having to miss out or you having to stop to get them up to speed.

Thank you.