Using Chrome on a mac, access logs say http 1.1 is accessing the domain.
Nothing in front of Ngnix, but I'm wondering if I have the http 2 module on Nginx...
server {
listen 443 ssl backlog=1536 so_keepalive=58s:58s:5 deferred reuseport;
http2 on;
# [snip...]
This is on nginx/1.26.2. Older versions looked a little different.