CCP is definitely not trustworthy, but they absolutely had no incentive to create a virus bio-weapon which would only be useful as a terror WMD... especially since the US only has one response to WMD attack: Regime change, and nuclear weapons would definitely be on the table.
Also, analysis was done early in the year to determine if covid was man-made and it's not. There would be tell-tale physical signs of genetic engineering... basically it's hard to splice stuff at the molecular level without leaving any loose ends. The only way to avoid that would be to use natural selective breeding... but in order to selectively breed a HUMAN virus to have specific properties in HUMANS, you'd have to use a VERY large number of HUMAN subjects as incubators. Probably hundreds of thousands at least, maybe more, so totally impractical.
Remotely possible they were doing legit research on an animal virus and it accidentally got loose from the lab in Wuhan (which is a legit research facility).