Completing some final changes and compliance requirements on an existing app

We have an app on Play Store and App Store. It is older, and is built in React Native and GO, and runs off of AWS.

It is being rebranded, and some of that needs completed. Mainly, the App store requirements are the largest items left. A report objectionable content button, a 24 hours system for that, and several policy and data privacy strings.

Please provide a detailed list of your experience with the software, compliance issues, etc when dealing with apps, particularly an older one that has been updated.