Does Traefik or Caddy have UI-built-in support for Let's Encrypt? If not, then perhaps that makes this special. If so, then probably nothing else except a relatively user-friendly UI.
No UI in Caddy, but it's only two lines of config to set up a domain with Automatic HTTPS and a reverse proxy to one of your apps. Don't really need a UI for that.
I love traefik, but getting started is kinda rough if you’re not quite technical. There are like three different places to put configuration, and even getting informative error messages out of the thing it’s not exactly trivial.