I think it’s possible that SARS-CoV-2 escaped from a lab, but not spread deliberately because everyone is equally vulnerable, so who would spread it? It’s no use as a weapon because it can’t be targetted.
Biolab security is a joke. A very bad one. Lots of people are trying to blame China, but biolabs are run just the same the world over. They should be in isolated places with staff working three months resident at the facility; six weeks work then six weeks quarantine before leaving. But instead they’re nine to five jobs in major city centres. Madness, but much cheaper, of course.