That’s a great feature indeed. And then there’s their CO-OP feature making couch coop online a thing.
It’s starting to feel like an advertisement for Steam, but they hardly need it 😄
I can relate to the port forwarding troubles. That’s been the biggest hurdle about gaming for decades. Idk if lan-emulating solutions can circumvent. Back in the day there were Tunngle, Evolve, Himachi and ZeroTier. I think Tailscale might be the way to go today.