Pi-hole v6 with Unbound - DNS Resolvers Not Reaching IPv6 Nameservers Despite Active IPv6 Connection

General Discussion
2

What is the output of:

ip -6 ad ; ip -6 ro list table all; ip -6 ru
nslookup ipv6.google.com

Please make consistent changes in the public IPv6 addresses, for example 2001:1234: can be changed to 20ab:5678: for all.