This is not news to anyone who reads AI papers: the number of Chinese authors is amazing.
China has a huge mass but it's just one object. The Anglosphere has several big objects and a ton of smaller ones and overall I'd say it is much bigger and has a longer reach.
Ofcourse even the best gardeners can fuck up but if I was betting on the best outcomes in 10-20 years I would bet on China.
It will take at least a few more years before submissions are allowed in Chinese: reviewers can't be assumed to know Chinese. The momentum is there though.