Better the demon you know than the demon you don’t. China has frequently implied jurisdiction of any Chinese national inside or outside its borders. Giving them more international data is a scary thought for me
This isn't for the Chinese government or the Australian government. This is for the American government because of the FACTA law.
The US government wants to have jurisdiction of everyone ... just in case you might be an American not paying taxes.
So don't invest large amounts in dividend-paying Chinese stocks if you plan on living in China long-term, I guess.
[1] https://www.hrone.com/china-individual-income-tax-2019-impac...
Edit: Can you find a better source? All of the sources I find say that "it is not clear" if the 5-year rule and 30-day leave reset still applies. Therefore, one should plan for the situation that it does not apply anymore.
[1] http://www.mondaq.com/china/x/777948/tax+authorities/Changes...