If provided, the intended lobby where the launched app should take the user. All users with the same lobby_session_id should end up grouped together in the launched app, which can be retrieved with field FOvrLaunchDetails::LobbySessionID.
FString MatchSessionId[Get]
If provided, the intended instance of the destination that a user should be launched into, which can be retrieved with field FOvrLaunchDetails::MatchSessionID.
[Deprecated]If provided, the intended room where the launched app should take the user (all users heading to the same place should have the same value). A room_id of 0 is INVALID.