How does this service, with DNS-over-HTTPS or DNS-over-TLS, compare to something like DNS Crypt? https://www.opendns.com/about/innovations/dnscrypt/
https://dnscrypt.info/faq/
The caveat that a "good amount of servers support the protocol" isn't very clear, how many is a "good amount"? Does that hold true now? Unsupported servers appear to fall back to traditional DNS resolution, oer the diagram; is this not the case with the HTTP/TLS implementations?