"The long-established behavior of encrypted DNS protocol settings from a profile overriding non-VPN domain-specific DNS settings has been confirmed internally from macOS 15.7.1 to macOS 26.5.:
"You will continute [sic] to run into the behavior of Quad9 DoT overriding the per-domain DNS settings so long as the profile is installed."
— there we have it from "privacy friendly" (whilst sneaking out age checks) Apple.
Thanks for sharing your report, it's frustrating to see things like this break in minor patch updates. Small tip for GitHub Gist: set the file format to markdown (give it a .md extension) so that the markdown will be rendered and won't require horizontal scrolling :)
The report says it broke when updating from macOS 15 to 26, so not a minor patch update. I'm a bit surprised no one noticed this earlier though, since 26 has been out since September and in beta since June.
It's a Python project, that produces a data portal, used by data.gov, data.gov.uk, dados.gov.br, and quite a few others around the world (see http://ckan.org/instances/ for some more).
You could be part of making the world a more transparent place, enabling people to find (and use) data more easily.
"You will continute [sic] to run into the behavior of Quad9 DoT overriding the per-domain DNS settings so long as the profile is installed."
— there we have it from "privacy friendly" (whilst sneaking out age checks) Apple.