DNS-over-HTTPS privacy and security concerns
godaddy.github.io
godaddy.github.io
Most of the privacy concerns seem related to the reduced ability of countries and employers to control the browsing behavior of people. IMHO this is mostly a good thing. I don't want to inform my government or employer of every website I visit. Lack of their ability to do this is the whole point of DOH. It's a feature not a bug. It's the reason I enabled it in my browser: it improves my privacy and security.
That said,I do agree that browsers being so presumptuous as to their role in assuring privacy and interoperability with users' environment is not a good thing for the internet. This is how you get regulated and this is one more thing that will force corporations to mandate IE/Edge!
DoT at the OS level sounds great.