I recently ran into a situation at work where I had a colleague ask me how he could create a Microsoft Planner task once, assign multiple people to it, but then have that group task spawn off into individual tasks for each person who was assigned the group task. Each person would subsequently have to complete their version of the task. It is a way to enforce individual accountability, but without having to manually create the same task multiple times. For example, you may have a situation where everyone on your team needs to submit a timesheet or perhaps you have annual compliance acknowledgements that need to be completed.
From a process perspective, it looks like the following:

I have posted a video walkthrough of this solution which can be found on YouTube: