What metadata? The headers are as encrypted as the payload. That there was a key exchange between you & a server isn’t too useful.
“Usually” is a strong word for DNS as well since all OSs let you change it & the megacorporations like Google & Cloudflare have already compelled a lot of folks to use their DNS ta resolve faster since the ISP ones are slow (& the smarter, curious folks used that as a launching point to find other provider or self-host). Some platforms have even been shipping DNS-over-HTTPS to get around some of these issues (since the payload & headers are encrypted under TLS).