Here are the steps you can do it:
Let’s assume that the information to display to players is stored in room properties.
You can get the room properties of a room using its primaryKey after connecting to the designated room server by its address taken from the invitation.
You can connect to the room server without joining a room, using StrixNetwork.instance.roomSession.Connect().
Then, you can obtain the room properties by specifying the room’s primaryKey in StrixNetwork.instance.roomSession.roomClient.Get().