Cloudflare IPV6 behaviour
How does Cloudflare behave in situations where a user supports both Ipv4 and Ipv6? I've read https://developers.cloudflare.com/network/ipv6-compatibility/ but the wording makes me a bit unsure about if it is referring about doing Ipv6 to the upstream servers or if it will prefer to use Ipv4 if a client has dualstack support.
Cloudflare Docs
Cloudflare enables IPv6 on all domains without requiring additional configuration or hardware (as long as your host provides IPv6 support).
