Hi Quinn. Thanks for your reply! I am targeting iOS apps. But eventually i was able to get it work the way i want. Thanks again for your reply though!

does this mean it will only work with devices who are a part of family sharing and not individual authorisation for screen time rules?

Many of our users have their children using iOS devices and the parent themselves not using iOS. So the child devices will not be a part of family controls. And as far as what i have read and understood is the Content filter network extension doest't work without the device being under family controls authorisation. So i am wondering if there is any way to provide this functionality without family controls?