How do you, or the author know all this?
The CCP runs their information control even tighter than their mafia-clan-esque political party and have done so for a very long time. They control and manage their public image even more than they control their populations thoughts.
So all you can actually do is read the tea leaves and guess a lot. Even their housing is fake and just for a massive investment-bubble bigger than the one that haunts Japan until today; how is all this not just another gigantic F-15 vs Russian-super-magic-airplane moment where it turns out the commies are not all we thought they were? (playing devils advocate)
China is facing a massive downturn in military-aged population and lots of retirement and a disillusioned youth, cheap mass manufacturing is moving out of China, they have very few actual high value high margin products.
Their entire economic success is based on capitalist western theories they imported from western professors. Their entire car industry was literally built up by the naive Germans who bent over backwards to give them the entire process from R&D all the way to mass manufacturing, automation and robots. Germany could not have given them more and faster than they already were - this will be a picturebook perfect example of how to replace yourself as quickly as you humanly and logistically can without holding a single strategic advantage back.
The real worry should be, with so much electricity that could give China a boost in AI but like pretty much everything else, the technological expertise for almost everything modern is still held in the US where the research and technological advances are happening, and China just copies everything they can grab and espionage from all over.
Then we turn around and performatively marvel at them.. at our own copies and stolen technologies and inventions we gave them. The entire West has pushed and lifted China for decades, with both hands.