Hey, thanks for giving godot-playfab a go!
Not sure what you did, but the AssetLib version has no demo scene. The scenes that are in the package are only there to extend the editor and are not meant to be used in a game. In fact, they can’t, as you can see in the error messages.
If you clone the GitHub repo, you can just open it up as a Godot project and hit play to see examples.
In terms of a setup video I have good news! On my stream, I did a walk-through and captured that specific part. You can find it here. Let me know if that’s helpful!