1) Regardless of whether or not this virus came from a lab, could such a thing plausibly happen in the future? Unquestionably yes.
2) Do we have international bodies to do inspection of the safety standards of any lab doing this kind of work? Ones that have the authority to require changes, or even shut down a lab, if those safety standards are not met? Unquestionably no, we have no such international body.
3) Could we make one? Yes, if China and Russia and the USA all agree to make one, it could be made binding on the rest of the world.
So, let's get on with that. I fear that the discussion of the origin of covid-19, while it has certainly been useful in showing what the potential future problems are, may get in the way of setting up something to prevent it happening (again?) in the future.