I like to manually configure DHCP and therefore for IPv4 I have configured 9.9.9.9 (Quad9) as DNS server and for IPv6 I have 2620:fe::fe (Quad9 IPv6).
ALL my devices correctly receive the following IP settings:
IP: 172.16.0.X
M: /24
DG: 172.16.0.1
DNS: 9.9.9.9
IP: 2001:A:B:C::1001
M: /64...