The big question is why he would so vigorously dismiss/avoid/quash the lab leak or engineered possibility. And the fact social media would rapidly delete any discussion of that as "disinformation". I wanted to link the WSJ article as they seem reasonably fair but it's paywall. So I used a non-US source to try and weed some of the nonsense. Plus links to relevant stuffs.
Fauci likely dismissed it due to some funding of that lab by NIH (which he foolishly tried to deny). Social media i.e. fake news pushed anything anti-Trump. Sadly, unless some whistleblower from inside the lab defects to the U,S, ccp will continue to hide the truth from the world.