Yeah, I use pomodoro. I'm thinking more of productivity over a 1-3 day period. Maybe I just need better default habits, when I use pomodoro consistently I'm very productive.
I don't think I'm a perfectionist, and agree it is to be avoided.
I don't think there is a way to consistently improve your total output without side effects. I worry that this chase for productivity always comes with negative fallout, and people neglect it when pursuing 'more output'. Better output, perhaps? More output? Probably unsustainable.