After searching on Google and XDA for an answer (which I didn't find), I decided to pose this as a question here.
So, I guess that the majority of us know about the so-called big difference between Android Marshmallow and its predecessors: the Doze feature. We do know that it manages wakelocks and the such in a clever way, apparently granting longer autonomy to a device. I had the occasion to test it on my device, and at least for me, it is true.
Now, due to some issues (including general unsatisfying changes implemented in Marshmallow, as well as random reboots), I decided to fall back to Lollipop. Still, even if I find it to be more reliable than Marshmallow (probably because of the fair long time destined to its development), I noticed the difference in my device's battery autonomy: despite it being in standby for the same amount of time, the battery discharges faster than it did when I used Marshmallow.
So, here's my question: is it possible, with a powersave governor in a Lollipop Android, to achieve the same, if not least, battery consumption that one could notice with Doze in a Marshmallow Android?
I prefer not to take advantage of Play Store apps, since mine is a question whose solution has not to be found with any auxiliary third-party software, and please support your answer with actual facts or appropriate research.