Firstly, China themselves say they have not achieved socialism. https://www.equaltimes.org/china-seeks-to-become-a-socialist?lang=en

I personally am extremely critical of China’s economic system, they are effectively the most Neoliberal state on Earth. A tenet of neoliberalism is that Capitalist investment raises the quality of life in developing counties, Deng agreed and opened China up to investment.

The Chinese labor force is stuck in wage slavery and awful conditions just the same as much of the global south in the name of economic development, they offer cheap labor and in return the CPC gains economic power.

China currently is much like a social democracy, they uphold capitalism and believe it is the best option for rapid development and pass some social programs to keep the proletariat placated. ex. Their healthcare system is pretty much identical to the heavily criticized US system.

Therefore imo, China Ideologically is a leftist state, but their doctrine calls for, much like the USSR, a transitory capitalist state to achieve socialism. China state media states they are in this process