RFC 9849: TLS Encrypted Client Hello, E. Rescorla, et al., https://www.rfc-editor.org/info/rfc9849#RFC This document describes a mechanism in Transport Layer Security (TLS) for encrypting a message under a server public key. This document is a product of the Transport Layer Security Working Group of the IETF.
I know I keep repeating myself, and I realize this isn't the most important aspect of the situation, but having Amazon bribe the US ruling family $40 million+ and be immediately rewarded by Iran bombing 2 different AWS regions is an amazing development in the history of cloud computing. Just amazing.