User Ref is a nested type usually used to auto fill UserUser variable when a user rejoins a session with this reference. This works better than a direct User reference, since the user that was referenced by the component can be identified later. The host instantly deletes the User object when a user leaves. making this type for getting a user more worth while for things like overrides and flux.
This currently isn't a component you can attach, but it is part of a Data Model Store<User>, so using such flux node will allow persistent user identification.
Component
This is what the type has visible while in a component context.
The machine id last known for a User. Is used to try to identify the user and fill User user ref field the next time they're in a world with this component.
The user's account ID last known for a User. Is used to try to identify the user and fill User user ref field the next time they're in a world with this component.
