Notification Center in macOS Monterey and fn N

In macOS Monterey, the Notification Center is mapped to `fn N` regardless of what you set it to under "Shortcuts" in the "Keyboard" settings (System Preferences).

The same `fn N` keyboard shortcut is used in VIM (from the Terminal app) to search (/) forward through the (highlighted) search results. The reverse search in VIM is `fn shift N`. You can search backwards since the `fn shift N` keyboard shortcut is unmapped, but not forwards since the `fn N` opens the Notification Center in Monterey.

Even if I set the keyboard shortcut for the Notification Center to be, say, `<command> N`, the existing `fn N` shortcut will still open the Notification Center along with `<command> N` now, #sigh!

Is there a plist setting or some other power user move to change this? Why is 'fn N' seemingly hardcoded?

Please advise.