I had a friend who did an expat gig in Shanghai. She left after year because because of the air quality and the food. She spent most of her life in Asia as an ex-pat but really hated China,
Yeah, my wife is from Shanghai, I’m not fond of the air there but like the food very much. (Definitely prefer the food in Shenzhen or Xiamen.)
Plus the way no one covers their mouth to sneeze or cough, and how frequently people get inside what I consider to be my personal space.