You have some unwarranted hostility and defensiveness about this, when everyone has openly stated that this is all guessing. Yet the empirical evidence is that

You have some unwarranted hostility and defensiveness about this, when everyone has openly stated that this is all guessing. Yet the empirical evidence is that on the same hardware, with the same capacity to preserve battery, and on similar workloads, Windows yields a much worse battery life. Which has to come down to the operating system not sleeping when it should sleep, and doing more when it could do less. Anyone who has ever programmed ever knows that the primary cause of such work is polling.