Reflect Actor System Documentation?

Hello.

There is no explain document about Reflect Actor System in Unity Reflect documentation ( https://docs.unity3d.com/reflect/Home.html )

I am checking out Reflect Actor System Sample scene in the package, com.unity.reflect@3.1.0-preview.9.

I found out a blog which is explain actor system.
https://blog.unity.com/aec/unity-re...er-based-ar-presentation-mode-and-guest-users

It is said that the performance was improved through the Actor System, but there is no official document, so I would like to know how it is different from the implementation using the Pipeline api.

and also is there any document of Reflect data (in reflect server saved AEC model data)?

Regards.
Tom Lee.