DNS over HTTPS is coming whether ISPs and governments like it or not – Naked Security
The takeaway, however, is that Britain’s National Cyber Security Centre (NCSC), and probably the US Government think its unexpectedly rapid evolution imperils the monitoring of terrorism and other illegal content.
Big ISPs also worry it will interfere with complex Content Delivery Network (CDN) traffic caching, make customer management through support and captive portals difficult, and leave them fielding calls from unhappy customers when the third-party DNS servers offering DoH fall over.