I conclude by saying that at this point Ledger has in fact screwed up half the hardware wallet world because that chip is practically used by almost all manufacturers, coldcards, Bitboxes, etc... So at this point the question remains "what to do?"
They unexpectedly opened a big hole. With the information that it is possible to access this chip through software, they set homework for the hackers. I don't think we will have to wait long for the results of this fiasco.
Among other things, Ledger is not exactly the maximum security given the previous leak data.
I would say that Ledger and its developers have a very strange understanding of privacy and security. There are really too many omissions on the part of the, until recently, number 1 brand when it comes to hardware wallets.