I see how to assign a date - but not set a due date. Sorry for the question but I can’t see it in the menus or in the setting dropdown for a note. I can’t see it covered in FAQ either.
I would like to use the due date and then search for notes with an expired due date - like a reminders app
Finally, you can of course create a reminder within the note and use that to inform/alert you when the note is due (third option).
We don’t want to support alarms as this belongs in the calendar app (which reminds me, you can also assign a calendar event to a note and set an alarm on that event in the calendar app, option 4), nor note level reminders (as it would confuse users who would now have to pick between a reminder and event linking).
Hope this offers some ideas how to best approach things.