Living in a society that rewards neurotypical traits and dismisses neurodivergent ones, I think it's safe to say that a lot of the part where it's a disorder is social. Me, I'd be much cooler about the frequent brain mush if it was socially acceptable to take a whole work day to start the computer.
Channel 4 has announced documentary “The Great ADHD Myth?” It “seeks to determine whether ADHD is a genuine neurodevelopmental disorder, or a social construct.”