Source: The Washington Post - Link
Fauci certainly cast doubt on the lab leak theory. But he generally couched it as there being no real evidence of it, rather the conclusive evidence to disprove it, and he was doing so at a time in which most other scientists were doing the same thing. There is quite simply no evidence that Fauci was delivered anything amounting to solid evidence of a lab leak. It adds very little to what we already knew about the doubt he cast on this.
There is still no evidence of a lab leak in Wuhan.