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DoT and DoQ are leaner than doing DNS via HTTP using TLS or QUIC. The only reason DoH is winning out is because reusing HTTPS means the standard port is TCP/UDP 443 so it bypasses misguided filtering.

It's entirely possible to host DoT/DoQ on port 443 and it looks the same as HTTPS since it's TLS or QUIC either way. It's just not the standard port so they lost for client side usage despite being superior protocols. DoQ will very likely win for usage on authoritative DNS servers though.