Nextcloud setup errors

Please forgive my ignorance, but I’ve been reading the docs and trying everything suggested there to fix this, and I’m getting nowhere.

My Nextcloud is behind nginx-proxy-manager which runs on a different host than the Nextcloud container.

It seems no matter what I do, I end up with some variation of this message stating /.well-known/{webfinger,nodeinfo,carddav,caldav} are not resolved.

I can confirm the WebDAV functionality works, so as far as I can tell, this is an annoyance for me to see the errors listed there. I’d still like to get rid of them and learn something in the process if possible.