How to observe app settings change in the app?

Is there any way to observe settings change for my app? I mean the settings that user can change in the "Settings", particular for my app, like battery optimizations, background restrictions etc. Here is what settings I mean in example of Gmail app:

Thanks in advance for your replies!

I found only one method, that indicate background restrictions:

isBackgroundRestricted() for SDK > 28

https://developer.android.com/reference/android/app/ActivityManager#isBackgroundRestricted().

Example of usage:

    if (VERSION.SDK_INT >= VERSION_CODES.P) {
        val activityManager: ActivityManager = context.getSystemService(Context.ACTIVITY_SERVICE) as ActivityManager
        Timber.w("Is app background restricted: ${activityManager.isBackgroundRestricted}")
    }

Please leave a comment if you found more methods like this.