ARC Support and Double NAT and No Port Forwarding

Is Roon ever going to find a way to support ARC for people that can’t meet the current requirements because their ISPs don’t support single NAT setups and port forwarding?

It seems all I ever see are improvements for ARC which many of us can’t use. I’d like to use it…,but can’t. My Internet provider is T-Mobile over 5G. I don’t have any other viable options where I live.