Earlier today, Google rejected a feature request asking for the option to use DNS-over-HTTPS servers other than Google’s and Cloudflare’s in Android: https://issuetracker.google.com/issues/331250145?pli=1#comment7
According to Google’s own testing, DoH is more private, secure, and performant than DoT on Android. There is no reason whatsoever to limit it to a handful of Google-approved servers.
Just like with Manifest V3 in Chrome, this arbitrary restriction on what DNS servers can use the most modern technologies in Android is a clear example of Google abusing their position to campaign against blocking invasive trackers. One of the clearest uses for custom DNS servers is the ability to block privacy-invasive services like Google’s at the DNS level.
Further details & discussion on our forum: https://discuss.privacyguides.net/t/google-rejects-feature-request-for-arbitrary-dns-over-https-server-support/24320