It would be great to have an option to disable ECH in the settings menu. Last year, Russia blocked the Cloudflare domain that is responsible for SNI encryption. Because of this, all sites that use this technology no longer open in Russia if the user uses ECH.
I know that ECH can be disabled in the settings editor (about:config), but for the mass user it would be easier to do it using the graphical menu. Without this option, many users may disable DNS encryption - and this is the worse option, since it exposes users to potential danger and helps censorship authorities study user traffic to develop further blocking on the Internet.
ECH is a great technology for user privacy, but unfortunately it currently depends on one single domain. And if you block this domain, hundreds of thousands of sites will stop opening.