[But this is offset by a month long vacation, and a month long shutdown during the CNY.]
The factories that I work with always have a vacation and time off for the holidays. While there is an official policy, the implementation of the policy is regional and depends on the workers. I can tell you FACTUALLY that I had my senior Managers, and technical experts take both a month long vacation and the full shutdown over the holidays.
Of course, there is policy, and then there is implementation. I never dealt with policy issues. I was always involved in implementation. For instance to get around the tax issues, we would allow the employees to break their pay into different bank accounts of their children. So while the policy might mandate a set fixed amount, the amount they functionally paid was far, far less.
No need to parse any of this. You just go to China and check it out on your own. Avoid Western cities, like HK, Shanghai or Beijing. Go to Chengdu, Guangzhou or Dongbei.