Since a substantial percentage of the tokens are from Chinese media and sources, it will have the same biases seen in those sources. Just as sources trained on US media will have a US bias.
Of course to the extent that Chinese media publish propaganda the model will learn that propaganda (similar to US media publishing of propaganda), sometimes the US reporting will eventually correct the propaganda though most media don't bother.
As to deliberate censorship - the model itself appears to not be censored but rather when serving the model they have another model that scans the input and output and terminates those responses that are to be censored.