OK, so I needn't worry about port-forwarding in any capacity so long as the interfaces are configured appropriately then? Disregarding DNS access, if I only wanted to connect to the LAN I should just connect this new WG Server interface to the LAN and otherwise configure it as I would on any other instance of Linux and not have to worry about forwarding a port? So in my client the endpoint would just be DDNSDOMAIN or WANIP without a port?