If SARS-Cov-2 was from a lab, what about the original SARS?
Generally though, China is somewhat better suited to producing pandemics, because they have a larger and more dense population within which a disease can spread.
SARS-1 was found in wild animals, had a long period in which it adapted to human hosts instead of being immediately well adapted, didn't have any weird artificial looking RNA sequences, and didn't emerge right next to a lab experimenting on coronaviruses.
Interestingly it was also clearly airborne and able to spread long distances in aerosols moved by air currents. Investigators traced those air flows in some cases to explain movements of the virus. Yet despite being literally called SARS-2 the WHO and other self-declared sources of expertise all denied that this was possible, and attacked people who pointed out that it was. The desire for lockdowns and masks to be perceived as credible outweighed prior experience with similar viruses, turning those who tried to learn from history into pariahs.
Generally though, China is somewhat better suited to producing pandemics, because they have a larger and more dense population within which a disease can spread.