Email notifications for when due date approaching (either in tasks or deck)

Hello. I want a shared task system in nextcloud that supports due dates and reminders. Users should be nudged via email when a task is not complete and is nearing its due date, and when the due date is reached.

Is this a bug or a feature that has not been implimented? Is there a setting switch I need to flip? I get email notifications when somone comments on a task, but not when a due date is approaching?

Hard to do task managment without some sort of notifications being sent out.