I find it interesting that in the PP100 (Problem Per 100 Cars sold) no one is doing better than 136, so on average every new car has a problem.

Curious how J.D. Power is defining "a problem" the article provides this insight

"It now asks 223 questions, split into nine categories: including infotainment, features, controls and displays, exterior, interior, powertrain, seats, driving experience, climate, and (new for 2020) driving assistance. Ars readers may not be surprised to discover that the most troublesome of these categories was infotainment, which accounted for almost a quarter of all problems. Top complaints here were voice recognition, Android Auto and Apple CarPlay connectivity, touchscreens, onboard navigation, and Bluetooth issues."

I guess I would want to get the car with the least number of problems, but without additional clarification into their methodology, I don't know how to best interpret these numbers.

I mean if someone is having trouble pairing their off-brand Wish Bluetooth headset to their car and considers that a problem, I would hope they weight it less severely than say, the brakes failing.

I tried to find out more about their methodology but found this rather scant page https://www.jdpower.com/ratings-methodology