The last part of the Netflix doc reminded me of the last part of OJ Simpson: Made in America. Obviously he's not brutally murdered anyone and he isn't doing time in prison, he's free and a billionaire, but with all that money, fame and acclaim he's still fundamentally isolated and unhappy.
That bind he's in of feeling like he needs to be off the meds to be creative – when you can see that being on the meds makes him happier, but also a bit zombified. Not a particularly new or interesting concept but almost heartbreaking at times to see.
Even if you don't rate him as an artist (or human being) I think it's still a pretty fascinating documentary. The first two parts were quite uplifting and the third was a total downer.