Can we cut this shit out? It's 2022, IPv6 has worked fine for decades, and Google is seeing 40% IPv6 usage on their services:
https://pulse.internetsociety.org/blog/ipv6-deployment-passe...
https://pulse.internetsociety.org/blog/ipv6-deployment-passe...
I've been running IPv6 at home for a couple of years now after replacing my pfSense router with OpenWRT. It mostly works. Every now and then there's an issue and, guess what, disabling IPv6 makes things work again.
Latest one would be Android ignoring IPv4 DHCP DNS setting if Android device has a IPv6 address.