My own experience: Don't ever trust the Chinese government on issues that could potentially involve the reputation of the party. Note that I'm not saying don't trust what CCP says, ever (sometimes they actually do good things) - just not on issues that involve anything to do with how the world might perceive them.
Which is exactly what this issue is about.
That's not to say we have compelling evidence that this was a lab virus, either. I think, for me, it's a, "we don't know, but I wouldn't be shocked at all if it was a lab virus".
Why is it never brought up that it could just be an accident? It doesn't need to be a weapon. Just poor safety during research.
Certain actors have a narrative they would like to push.
Now, it still most likely came from China but this adds to the reasonable suggestion that the Wuhan market was simply the first large outbreak but not near the origin of the virus.
My 2c is that the virus will be found (if we do find its origin) to come from a rural area in Southern China.
I was disappointed that having looked at evidence of early spread in France and Italy through wastewater samples and patient blood samples that the Chinese response instead of doing similar research was to say all wastewater samples have been chucked and looking at blood samples is illegal.
The cynic in me perhaps asks why they would do that.