Sure, the battle for your data will continue - once the ISPs are out of the picture it will be a battle among those who will try tro control DoH queries - just wait for applications to be run on Windows abide to Windows DoH settings... or Apple apps that to be allowed in the store will have to use the Apple approved API to query DNS....
Anyway, keep on they are doing it to keep your queries safe - they are only trying to ensure they know *everything* about you queries - encryption is useless when you can't trust the other endpoint. And the few DoH endpoints will have an enormous power over the internet, which will become even more centralized.
You will discover one day the eggs were put all on the wrong basket(s)....