3 lines of text (which you can copy/paste from an existing entry) beats clicking around a web interface to set things up.

Plus you can do many more advanced things with Caddy which you can’t do in NPM. Caddy is just easier to use.

You can use Immich Public Proxy to share the albums without having to expose your Immich instance. You can use all the normal Immich options - password protected albums, and links that expire, etc