I agree that this is confusing. As far as I know, you still need a travel certificate to board any flight to France. This certificate is to show prior to boarding. The TravelDoc system that Air France website uses still says that you need this document even when you say that you are only transiting. And french interior ministry still says that you need this certificate to "enter" or "transit" through France.
So yes, very unclear. You won't see much experience based posts here because very few peoples are travelling right now.
I would says, tick the 4th box : "Third country nationals, transiting less than 24 hours in an international area to reach their country of origin and who are holders of a travel document to this country;" in case the airline need this document. If they ask for more, the documents that prove that you are going to your destination for business should be enough.
If this trip is very important to you, ask the airline or the french consulate to give you a written answer so you will be certain to board.
https://newyork.consulfrance.org/Cor...estations-here
https://www.interieur.gouv.fr/conten...europe-en.docx