> some games and apps will stop supporting ipv4 on the basis that nat traversal is a pain and dual stack networking is a pain None of these are actually the ga

> some games and apps will stop supporting ipv4 on the basis that nat traversal is a pain and dual stack networking is a pain None of these are actually the game/app developers' problem. The OS takes care of them for you (you may need code for e2e connectivity when both are behind a NAT, but STUN/TURN/whatever we do nowadays is trivial to implement).