Getting child’s app list without FamilyActivityPicker

I implemented parents to manage their children's apps with FamilyActivityPicker.

Then, is there way to get child’s app list without FamilyActivityPicker?

How did you manage to get the children's apps? In my experience, after authorizing on the child device, the parent device's FamilyActivityPicker shows as empty

Getting child’s app list without FamilyActivityPicker
 
 
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