How to work with instructions in your application for different Android models?

Question

Android

Friends! There is a problem:

In my application, I have a need to make instructions for troubleshooting problems with notifications, as a rule, these problems are related to:

a) Battery optimization settings;
b) And extra. battery parameters;

But in different models, brands and version of Android, the scripts and system windows interface are different to solve problems A and B. Is there any single reference or framework that you can implement in your application?

PS In Google Play, I met applications in which there are instructions for any smartphone, didn’t they really prescribe everything themselves?