You can specify the authentication server that your players log into as the main server. So instead of making lobbies the main server, you will make the server you are logged into as the main server, so you probably don't need to make your other servers the main server.
Example Scenario;
- The player connects to your server.
- The member is redirected to the Authentication Server for login.
- Installs the resource pack on this server and then logs in.
- The MultiLobby plugin directs the player to one of the available lobbies.
In this way, your players will have installed the resource pack on the verification server and will not need to install the resource pack on other lobby servers.
It's worth a try 😃