In the video below it's dicussed why it's unlikely the virus is 100% natural.
I'm sure quite a few nations conduct research for various purposes. My view is China was conducting research and it accidentally escaped.
Brett Weinstein (an evolutionary biologist and far from a right-wing conspiracy theorist) has this guy on and the conversation was pretty fascinating. I don't have the science background to do anything but go with the most convincing story.
It's dubious that the virus just so happened to turn up next to a lab working on similar ones.
They discuss
this paper, but for a layman the discussion is much easier to understand.