https://letsencrypt.org/docs/challenge-types/ needs to be updated. Under TLS-ALPN-01 it states that
mainstream web servers like Apache and Nginx could someday implement this
It’s not supported by Apache, Nginx, or Certbot, and probably won’t be soon.
In fact, Apache's
mod_md supports TLS-ALPN-01, and has for over a year.
mod_md also supports HTTP-01 with
.well-known/acme/challenge virtualized (no need for
.well-known on disk), and DNS-01.
It's part of the
httpd distribution - and the latest version is on github.