I view it as unhealthy to squeeze every ounce of productivity that we possibly can. What about taking time to unplug and enjoy the life you've created for yourself, instead of just counting the minutes until you're working again?
I accomplish a shitload of stuff and I don't microdose (I don't even drink coffee). I think of the American work culture as having a horrible sickness where a person's worth is measured only by their output. We are supposed to be constantly producing, never stopping to think if we're even producing the right things.
Sure, maybe some people want to be working all the time. More power to them. However my guess is a lot of people are sucked into it because of the culture and naturally would like a little more free time to themselves.