Just a quick query from someone who has beginner level experience in NGINX and Caddy. Doesn't this PR [1] for Traefik imply that trailing dots for FQDNs are fixed?
What is kuschku arguing against in ELI5 terms?
It is not _configured_ by default. There is an important distinction.
It's not mentioned in documentation because the documentation [1] does not provide an _exhaustive_ list of the kinds of addresses that Caddy can be configured to serve.
1. https://caddyserver.com/docs/caddyfile/concepts#addresses