Great Article!
Just want to share some knowledge that from Android 11, PlayStore will reject the app if you use QUERY_ALL_PACKAGES permissions for just getting app info.

For getting packages you have to define query tag with the app’s package name for getting information

Also, getApplicationInfo method is deprecated from Android 11

<queries>
<package android:name="string" />
<intent>
...
</intent>
<provider android:authorities="list" />
...
</queries>