An internet draft is gaining traction to make TLSv1.3 Client Hellos encrypted.

https://datatracker.ietf.org/doc/draft-ietf-tls-esni/
https://blog.cloudflare.com/encrypted-client-hello/
https://blog.cloudflare.com/encrypted-sni/

There seems to be lots of interest in this enhancement, as it solves some of the TLSv1.3 confidentiality issues by having fields such as SNI/ALPN no longer communicated in the clear.

We should add support for this when it has been issued as an RFC.