This is the second line of defense in a defense in depth.
In front was the "wet market" fable.
Now, the 'accidental' lab leak.
But considering Fauci's 2017 statement that "This administration" would have to deal with a "surprise pandemic", and the perfect timing of the event to foul up the 2020 campaign and election, that Chinese were allowed to fly out of China, but not around China as the pandemic was developing, and much, much, more, my bet is on Door Number 3:
That the pandemic was intentional, for both political and pecuniary gain, and the release and its timing was no accident.