Ledger will probably lose a percentage of their current userbase because people have found out their hardware wallets aren't as safe as they trusted Ledger they would be.
No doubt about that--but I don't suspect that Ledger is ever going to release the numbers since they're not a public company and thus don't have to. Nor are they likely to further damage their brand by announcing a drop in sales or in users. But man, I really would like to know how much this debacle is (or is
going to) hitting them as far as profits go.
And to Abiky I'd say with respect to HW wallets, closed-source code is a bad thing as Ledger has proven. Such code might be acceptable in other things, but not when it comes to crypto--at least not as far as I can see.
From everything I've read since this went down with Ledger, the best HW wallet brands for bitcoin are BitBox, Blockstream Jade, and Keystone. Some folks have mentioned others, but I'm pretty sure that's because they were paid sponsorships on Youtube. I'm pretty turned off by Ledger and HW wallets in general now, so I don't think I'll be buying any new ones (except perhaps as collectibles).