There is supporting evidence that the virus could have been modified in the Wuhan lab, although itās a big leap from there to suggest it was deliberately released. The Wuhan Institute of Virology is one of the largest coronavirus research centers in the world and houses the largest collection of coronaviruses from bats. They were the oneās who discovered that the original SARS outbreak in 2002 originated from bats. More importantly they have been studying gain of function techniques, which involve enhancing the properties of viruses to try and predict what could cause a future pandemic. They may just have succeeded in that effort.
All in all it points to an accidental release of a virus they were fucking around with.