Aside from the financial benefits, I think China is using this as a diversion. Watch for their true intentions next month. With much of the west in chaos over Covid-19, and a political civil war brewing in the USA, there is a possibility of China invading Taiwan in October. The western powers will be paralyzed and indecisive about retaliating.
The main purpose of covid was to get mail in voting so the Demsheviks could cheat and get rid of Trump and install Bitem, the CCP friendly (”Owned”) candidate.
And blame Trump for all the covid deaths and mayhem.