Oh yeah, the IPv6 saga at Google cloud is a long running joke. However this is indeed a decent step forward, in particular this is relevant to the comment I rep

Oh yeah, the IPv6 saga at Google cloud is a long running joke. However this is indeed a decent step forward, in particular this is relevant to the comment I replayed to: in order to reach a VM traffic has to traverse the network fabric, which clearly now supports IPv6. As for GKE that's another pair of shoes, probably more related to configuring calico and friends and less about limitations in the low level network fabric. As for Google API, I read somewhere that they disabled it because billing exemption wasn't ready.