What if running certain apps or heavy loads did not shorten the laptop's battery life from 8-10 hours? Is an Apple processor chip able to provide more results

What if running certain apps or heavy loads did not shorten the laptop's battery life from 8-10 hours? Is an Apple processor chip able to provide more results in macOS creative apps (GarageBand, Logic, etc.) per watt-hour than any Intel chip? If so, then Apple will target Pro users with the A14, because it'll reduce demand on the battery in Pro scenarios. Either they'll reduce the weight of the laptop, and/or trade battery volume for other purposes, and/or increase the advertised battery life of the laptop. An iMac Pro is just a MacBook Pro glued to the back of a much larger monitor and a higher thermal cap. So if they would do it for MacBook Pro, they would do it for iMac Pro. And that means that the iMac Pro, which has a fixed amount of thermal capacity, would make more efficient use of the heat it generates. x% more efficient use of a battery on a laptop translates to y% improvement of some other aspect of a laptop and a desktop, and Apple isn't historically afraid of adding a new macOS architecture when improvements require it.