With IPv4 + NAT your address does not change for 24h in most connections, while with IPv6 it changes every 10 minutes. IPv6 is better for privacy there. The out

With IPv4 + NAT your address does not change for 24h in most connections, while with IPv6 it changes every 10 minutes. IPv6 is better for privacy there. The outgoing port for IPv6 is also still randomized, so if you look at it over 2 days, on IPv4 you get two IPs doing a series of connections while with IPv6 you have potentially thousands for each device doing connections, with no way to correlate them.