SARS-Covid-2, whilst predominantly found in bats, has also been found in dogs, cats, pigs, mink, and ferrets, among others. Some of these are probably transmission from humans to other host species, but there is evidence for dogs acting as an intermediate host and passing it on to humans.
I don't think we will ever know with absolute certainty the truth about how it moved to human hosts, lab release or market, but it certainly is not bio-engineered.