How to make a decentralized Backup of your Phone:

The <color #ff7f27>DATA</color> of your app's:

adb pull /data/data ~/backup/data/data

Your <color #00a2e8>INSTALLED</color> app's:

adb pull /data/app ~/backup/data/app

<color #ed1c24>PRE-INSTALLED</color> system-app's:

adb pull /system/app ~/backup/system/app