onAirXR Playground is running on onAirXR Enterprise platform. In the platform there is a special server - Group Content Server (GCS) - which runs content as a host. And in most cases, a screen connected to GCS shows the content’s display which renders a third-person view of the content.
By default, the host process displays the content at the pose of the camera under AXRPlayground.

However, you can make your own content display using AXRPHostDisplay.
Create your own component inherited from AXRPHostDisplay then add it to a game object.

Add cameras, UI elements, etc. to make your own display under the above game object.

Write scripts using AXRPHostDisplay methods. (See DefaultHostDisplay.cs in “Demo Scene” sample for example code.)
int playerCount
Player GetPlayer(int index)
void BindPlayersToListView(BaseVerticalCollectionView listView)
virtual OnPreUpdatePlayerList()
virtual OnPlayerAdded(Player player, int index)
virtual OnUpdatePlayer(Player player, int index)
MonoBehaviour.Update()virtual OnPlayerRemoved(Player player)
virtual OnPostUpdatePlayerList()
In XR Origin > Playground > AXRPlayground component, set your host display component to Host Display

Show Game Object To Only Some Players
onAirXR Playground Technical Overview