Don't store passkeys in hardware. They are more secure that way, but more dangerous if you lose them. Your passkeys were stored on the old CPU and are gone. If you do, you need to store on multiple devices like phone, tablet, and computer, but that is harder to manage.
Better to store passkeys in password manager. Then they become more secure passwords. The big advantage is that they can't be phished, and sites don't use 2FA with them. It also means you can choose password manager that you trust and work better than Apple and Google.
Better to store passkeys in password manager. Then they become more secure passwords. The big advantage is that they can't be phished, and sites don't use 2FA with them. It also means you can choose password manager that you trust and work better than Apple and Google.