There is no real record to be made.
An older Japanese guy has done it.
And as you say the french have done it way quicker.
And there also have already need zero carbon trips completed. (note: I choke a bit at the zero carbon claim when he is sailing a carbon hull
The 150 days comes aiming to beat Dodge Morgan's time on American promise (set in 1986).
Technically what he says he is doing is setting a record for a very particular route: "St. Augustine to St. Augustine around the world solo, unassisted and non-stop".