Default reminder for Tasks at due date

Is your feature request related to a problem? Please describe.

I want to be able to set default reminder for tasks. I always set this to the due date/time. I currently must set due date and reminder separately for each tasks, but I always set this to the same date.
Option to set this automatically would be nice.

Describe the solution you'd like

When I set due date for task, reminder is automatically set for the same time.

Describe alternatives you've considered

No response

Additional context

I am using Nextcloud tasks to sync automatically to my phone's Tasks.org app.
In previous Nextcloud Tasks version, (I believe) reminder setting was not there. App in my phone is set to have default reminder at the same time as due date/time, so it worked as expected. With new Nextcloud version, this stopped working, because Nextcloud now sends the reminder, it is just empty by default. At least that is my understanding, I might not be 100% correct here.

The issue names no files or tests. Start by locating task due-date and reminder handling, then trace how reminders are persisted and synced to Tasks.org. Done means setting a due date automatically creates a reminder at the same time, without a separate edit, with coverage for that behavior.