Do you obsessively care about web performance?
You can save one whole RTT by putting HTTPS (and H2/H3) support right in your DNS. Also gives you a bit more privacy (sometimes, it depends. Terms & Conditions apply)

See https://savearoundtrip.com/ for more. (HT @mxinden)

savearoundtrip

Publish an HTTPS DNS record. Let browsers reach HTTP/3 on the first connection instead of wasting a round trip.

@freddy That's nice. On the other hand: the most traffic on my blog comes from bots. Most bots only use HTTP/1.1, only some use HTTP/2, none of them use HTTP/3 as far as I can tell. A similar picture for compression (content-encoding): Most bot-requests only support plaintext, some support gz, only very few support brotli.
@freddy At least it should be a bit faster for actual visitors :)