Nginx Proxy Manager Settings for Jellyfin

[dthree]

Found this thread while searching and have a related question.

I followed the documentation to setup Nginx Proxy Manager for JF. When it came to the optional but recommended security settings to enter in Custom Nginx Config, I added this but noticed that there was a note under the config entry box on the advanced tab:

Please note, that any add_header or set_header directives added here will not be used by nginx. You will have to add a custom location '/' and add the header in the custom config there.

I didn't use the "Custom Location" to setup up the proxy host, does that mean that most of what I've entered in the custom config of the advanced tab is inactive?