I frankly don't know, personally, or have any real confidence on any explanation of its origins. I think it's plausible it's a natural (zoonotic) virus. It's also plausible it isn't. Maybe it was lab created in some effort to study something with no bad intent. Maybe this, maybe that.
It may be akin to a lot of other things, some opinions might derive more from political leanings to hard evidence, of which there is little I think.