Ah, I see what you mean. Aside from putting the proxy into debug logging one would have to use curl -vvv to get similar details but I suppose whatever works best with muscle memory is the right choice and one may not always have access to put the proxy into debug logging.

I need to try this with a Squid SSL Bump MitM proxy just dont have one up at the moment.

    curl -vvv -A Mozilla -H "Accept-Language: en_us" -H "Sec-Fetch-Mode: navigate" --url 'https://nochan.net/.env'