[bnabholz]

Agreed! But as IPv4 with NAT has an implicit "deny all inbound" firewall rule, in the IPv6 world many routers will default to "deny all inbound" to any "inside" IPv6 addresses. So game servers may benefit from an outside coordination server (so bidirectional traffic can flow) but unsolicited inbound traffic to web servers would still require some configuration at the firewall.

Absolutely in the P2P case it is fantastic. IPv6 effectively guarantees direct connection for WebRTC audio/video, VPNs like Tailscale, etc. However there is still some necessity for video services that can provide a Selective Forwarding Unit, for instance once you get 5+ people in a video chat, you want a server in the middle to mediate and rescale video to manage the experience for all participants. But for sure it is better for everyone for 1-on-1 chats to be able to establish the connection without an intermediary, and that underscores what the Internet is all about.