Show me what research you've done to underpin that obviously non technical belief, and I will show some respect for your opinion.
If you want to put my information to the test, you can do so by repeating my own experiment. Take two identical machines, one running the latest Ubuntu, and one running the latest Windows, and use them side by side, to do all the things an intensive computer user, say a Systems Engineer like me does every day with computers, including scientific / engineering simulations and graphics processing tasks, and all the usual networking and monitor the power consumptions of each. Then write a story reporting your results. Then I would take your opinion seriulously and suggest to you what you might have done wrong in your experiment, if you somehow got a different result from me.
You only need to look in the active processes list in Windows and Ubuntu running in idle state to see the world of difference between them. There is an endless list of unidentified processes on windows, and a handful of known processes in Ubuntu.
Sorry mate but your infirmation is completely deluded, I have no clue where you might have got it from but can tell you what motivates you to respond with only unfounded belief to well researched information by a long practicing expert researcher in the subject. Let me know if you would like me to elaborate on that.