When I bought a new gaming PC recently it default configured on my home network with IPv6 but not IPv4. It was interesting which features Microsoft considers crucial (and so worked on IPv6) and which were not important (and so they just didn't function, claiming that there's no Internet even though of course there is and e.g Google works)

Advertising for example, was essential. Spewing garbage I don't want, absolutely critical to Microsoft's bottom line apparently. But registration so that I can turn off that advertising? Not important, so that was not available until I gave the machine IPv4.