Many are pure nonsense. How many foreigners in China have 1 million USD in assets ? You Viets don't make up all the wild stories about China.That’s hopeless.
Migrating to China is more difficult than to US, UK and Germany combined.
First, you need to be fluent in Chinese.
Then, be good in Chinese literature, politics, and culture.
Then, you can name all Ccp leaders in Chinese language since Mao.
All Chinese emperors since the Han.
Of course, Chinese government expects you to be young, to have at least a master degree. Have at least 1 million USD in assets. Absolute loyal to Ccp is a bonus.