Greetings
Good news. HTTP/2 support for DoH, which is a requirement for implementing Quad9 DNS, is now available in the development version. Currently, support is available for ARM64 and x86 systems.
https://quad9.net/news/blog/doh-http-1-1-retirement/
What's new in 7.23beta2 (2026-Mar-13 11:52):
*) dns - added HTTP/2 support to DoH on ARM64 and x86/CHR devices;