This is the opposite of the Korean and Japanese model, which is concentrated on chaebols.
There are advantages and disadvantages
Diversified conglomerates have advantages when capital is scarce and the business environment is uncertain.
That is likely to be the case in a developing country.
But once capital is available and the business environment is stable/certain, the advantages of conglomerates are far less.
That is the case in China with its abundant venture and investment capital, along with a rational regulatory environment.
If China did have conglomerates like Korea and Japan, they would have to be truly massive because China is on another scale.
With Korea and Japan, these are geographically small countries, so at least they were geographically concentrated from a management perspective.
But with China, they would also end up spanning a landmass the same size as the continental USA. So there would be a lot more inefficiencies piling up.
Even without conglomerate structures, focused companies in China will still end up being bigger than any Korean or Japanese conglomerate.
---
Korea and Japan are not noted for ground-up innovation or creative destruction, precisely because of the conglomerate dominated structure of the economy.
You need many new small-medium sized companies, because some of these will grow into the next multinationals
Different industries and locations in China will favour certain types of business models, and China is big enough to support them all.