BTW; Hermès is worth 230 billions €, the Wertheimers are asking almost the same. So nobody knows if they seriously want to sell, maybe hoping for a queen from a Gulfe monarchy or a sovereign fund to snatch it, or if they just want to, idk, incite interest from one of their heir to succeed them.
Its the complete reverse of the Succession TV show, none of the Wertheimers childrens are interested in Chanel, they have different lives and have never been very involved in the family business, at least much less than the Heilbrons, who aren't direct shareholders.