DoH doesn't bring any privacy or censorship circumvention, it still allows ISPs to mine and monetize browsing history all they want, only creating temporary inconvenience. It lets more parties to get your data though and is more friendly to state mass surveillance.
Try to search DoH on HN, these issues were discussed many times before. Essentially DoH leaks more data to more third parties, without being able to withhold that data from those who already can get it, hence violating privacy, not improving it.