Earlier quoted context omitted.
I think what you say is true over the long term, but not so much over the short term. Need me to skip breaks and work hours for one day when I'm well rested. I definitely can be significantly more productive than usual. Problem is that it's not sustainable.
Most coders I know have had occasional run ins with a rabbit hole where several days of their life got sucked into a single drawn out coding session with little breaks besides food, and had some of the most productive few days of their lives doing that. If you need me to do a three day sprint, I'm going to accomplish the most without any breaks and with very sporadic sleep. (typically when doing a multi day session m…
The catch is than in many positions, one needs to blend these 2 modes of operation. Some collaboration, some deep work. Unless there's support throughout the organization, what ends up suffering is the deep work.