A science report released this month, titled “Japanese Science and Technology Indicators 2021" shows that Japan production of highly cited papers has been falling while China has finally and for the first time been able to remove US of the first position thus becoming the new world champion https://www.asahi.com/ajw/articles/14416414
PS - In a recent article published in The Economist entitled "The case for mutual educational disarmament" one can read that Chinese students spent almost 11 hours per week in after-school tutoring https://www.economist.com/finance-and-economics/2021/08/21/the-case-for-mutual-educational-disarmament which is much different than what happens in Sweden, Norway or Germany where parents show little demand for tutoring but the most interesting in the article is the fact that China is now trying to enforce restrictions on tutoring schools.