A set of Internet actors wrote to the US congress to complain that activation of DoH by Google may deprive them of the spying and manipulation they’re used to ▻https://www.ncta.com/sites/default/files/2019-09/Final%20DOH%20LETTER%209-19-19.pdf
Summary of the issue in the Wall Street Journal ▻https://www.wsj.com/articles/google-draws-house-antitrust-scrutiny-of-internet-protocol-11569765637 (paywall, note how the Akamai spokeperson clearly states that they monitor DNS requests and want to continue to do so).
▻https://arstechnica.com/tech-policy/2019/09/isps-worry-a-new-chrome-feature-will-stop-them-from-spying-on-you (one of the few articles that do not copy blindly the discourse of the Internet operators and ISPs)
▻https://www.cnet.com/news/google-reportedly-under-antitrust-scrutiny-for-new-internet-protocol (based on the Wall Street Journal article, with a nice addition “cable and wireless companies being cut off from much of users’ valuable DNS surfing data”, which spills the beans.)
▻https://www.eff.org/deeplinks/2019/09/encrypted-dns-could-help-close-biggest-privacy-gap-internet-why-are-some-groups (#EFF opinion, with a strange idea “EFF is calling for widespread deployment of DNS over HTTPS support by Internet service providers themselves”, so asking DoH support by the very entities that you do not fully trust.)