pfSense » pfSense Docs

I just setup notifications in pfSense and can't find any documentation on the page below to show what sort of actions trigger a notification.
https://docs.netgate.com/pfsense/en/latest/config/advanced-notifications.html

It seems this is a semi-common problem.
https://www.reddit.com/r/PFSENSE/comments/ar3w9l/pfsense_email_notifications/
https://www.reddit.com/r/PFSENSE/comments/l6lil3/how_to_configure_whatwhen_for_email_notifications/

Am I missing something, or is this documentation hidden somewhere? Ideally, I'd like a giant list of checkboxes to turn on/off notifications for things, but I'd take just a plaintext list of what will trigger a notification. Right now, I'm searching GitHub to see what triggers notify_all_remote.
https://github.com/pfsense/pfsense/search?q=notify_all_remote