Comment by hunter2_

> a configuration page for Pihole in your NAT router's web interface likely isn't coming soon. I hope that changes.

In the meantime, the majority of routers do allow you to specify the DNS resolver instead of using whatever it learns via WAN DHCP, so you could put in a filtered public resolver (as opposed to your own Pihole instance) which gives pretty similar results if you don't need to whitelist anything. Plus, you can do the same on mobile devices that roam beyond that router (and avoid VPN through said router). I've been using dns.adguard-dns.com (94.140.14.14 and 94.140.15.15) [0]. They were founded in Moscow but now operate out of Cyprus (EU) and I don't have much of a reason to trust any other DNS operator more than them.

[0] https://adguard-dns.io/en/public-dns.html -- "method 2"