Not saying the games and the coronavirus are related but, damn, so many coincidences when it comes to such a nasty virulent virus coming from a place with China's only bioweapons lab that also happened to host the Olympics games for soldiers. Food for thought...
They were presumably high safety level labs for things like infectious disease research, not bioweapons labs. Then again, China wouldn't be upfront with a bioweapons lab.
There's no reason to assume it was a bioweapon even if it did come from the lab. Labs have accidents. Labs like that are where a human might be exposed to an animal virus in a way that they could catch something that doesn't normally infect humans. Because there are other coronaviruses that already infect humans it only need to happen once for recombination to change the animal virus into a new strain capable of infecting humans.
A human coronavirus and an animal coronavirus (zoonotic) infect the same cells which start spitting out all kinds of copies that are genetic mixes of the two. One of those copies can be mostly the zoonotic one that we have no resistance to only now it gained the traits needed to infect humans directly. That person goes out and-BOOM! New pandemic.
That's how it worked for SARS, Swine Flu, MERS, Bird Flu, Spanish Flu, etc. As it spreads recombination with other endemic human coronaviruses (remember: it's always been responsible for a third of human colds) and random mutations can change it enough that it becomes a new strain able to re-infect people who have already had the previous strain. This is why influenza is seasonal and can't be cured with a vaccine. You will be immune to a few strains but it will mutate and recombine with other influenzas (including animal influenzas) and there will be new strains it doesn't cover next year.
There's still hope we can make a vaccine for this strain of coronavirus fast enough to stop it from becoming endemic like the flu.