there are many more studies and articles on the genesis of COVID-19...they all point in the direction of animal-to-human transmission. BTE, these folks have been doing this sort of analysis for decades, so it would be unbelievably difficult to arrange a conspiracy between them.
One other thing...China's singular strategy going forward is the "Belt and Road Initiative" which depends on 'happy customers' all over the world...unleashing a pandemic on those same customers is unlikely to be in China's "Marketing Plan"...don't you think?
Also, China provided the genetic code for COVID-19 to the rest of the world in early January, 2020 (shortly after they discovered it in December 2019)...from which we were able to use new mRNA technology to create vaccines in record time...
Link: https://www.nature.com/articles/s41467-020-17687-3