I don't think it's a Biological Weapon in a sense most think of, but I do think it was released with that intent. The Chinese (and Russians) both know that all out war means millions of deaths and potentially a world cataclysm with nuclear weapons, it would also put them both in very bad graces with many other countries across the globe. But both China and Russia want the USA to fail and succumb to their will. I think the true purpose of Covid was to create economic and social chaos, and it's clearly been successful doing that.
I also don't think I agree with Dooms on the Chinese don't care who the Pres is here. I think they clearly would be much happier with a Biden White House than another 4 yrs of Trump. They (and the Russians, Ukraine, N Korea and Iran) all know they have tons of shit on Biden and he would essentially be a puppet for them.
If you were the leader of an enemy foreign nation and you saw Biden fumbling over words, losing his train of thought mid-sentence, taking days off after campaigning for a few hours, and walking like a 90 year old man you would be chomping at the bit to see him elected president. And then you look at who is next in line. Harris may be the least prepared VP in the history of the country. If anything happens to Biden, Harris is in control of the free world. If I was Iran, NK, China or Russia I would be salivated for inauguration day.