Yeah, IPv6 is shut off on my Google Fiber router. Stuff on the Internet breaks when it’s on (last tested three or so months back when they sent me a new router).

When we first got Fiber, years ago, Amazon’s store was one of the things that broke until I turned off IPv6. Wouldn’t load at all, on any device on our network.

Works fine for VPNs and such, but I don’t talk to the Internet with it, because my experience has been it’s terribly unreliable.