Some argue china has been underreporting it's GDP. It kinda aligns with my own experience, when I visited countries of similar per capita GDP like Mexico and Brazil, I definitely find that china has a much higher standard if living. I'm not just talking about first tier chinese cities, but tier 2-4 compared to places like Cancun and Sao Paolo
The heritage foundation at the very least is a conservative think tank, and American conservatives are every bit as ambitious and bad faith as the CPC when it comes to power.
I very intentionally did not specify a number - I said very generally that the Chinese economy has been growing steadily. This is pretty much indisputable. Your links do not dispute that China has grown in this century, more the extent to which the growth has occurred.
China is likely exaggerating their growth but regardless it has been growing.