> HTTP/3 relies on QUIC as the underlying transport. The QUIC version > being used MUST use TLS version 1.3 or greater as its handshake > protocol. HTTP/3 c

> HTTP/3 relies on QUIC as the underlying transport. The QUIC version > being used MUST use TLS version 1.3 or greater as its handshake > protocol. HTTP/3 clients MUST indicate the target domain name during > the TLS handshake. This may be done using the Server Name Indication > (SNI) [RFC6066] extension to TLS or using some other mechanism. So if TLS 2.0 starts using ESNI (either draft-ietf-tls-esni or draft-ietf-tls-sni-encryption) QUIC will benefit from that too. Otherwise, QUIC is neutral.