Great article, wish I’d come across it when it was published in 2018.
Apps like Greenify make tweaking Doze more user friendly - such as reducing the time required to get to Doze mode. Phones/batteries/Android versions before about Nougat really needed to get to Doze mode much more quickly than default.
Tweaking Doze with Greenify brought my screen off battery consumption down significantly…anywhere from 25%-70%, depending on the phone and my usage patterns.