https://www.zdnet.com/article/how-to-enable-dns-over-https-doh-in-google-chrome/

"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --enable-features="dns-over-https<DoHTrial" --force-fieldtrials="DoHTrial/Group1" --force-fieldtrial-params="DoHTrial.Group1:server/https%3A%2F%2F1.1.1.1%2Fdns-query/method/POST

https://1.1.1.1/help

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https://www.zdnet.com/article/how-to-enable-dns-over-https-doh-in-firefox/

General, Network Settings, Settings, Enable DNS over Https Checkbox