Beware of China and their connection to such things. Now that they have been exposed to the world, are losing their asses financially and they know the US will very likely strike back for the shit they pulled they will undoubtedly try to pull some shit and move their timeline forward.
They would absolutely release such shit through proxies. They are our enemy and the enemy of every western country, Russia, Japan, etc. They are behind or connected to nearly every single issue we have seen.