If you use Dashlane to manage passkeys, your passkeys remain available in your vault, which you can access on any device. For example, if you lose your phone, you can still log in to Dashlane on your computer and use your passkeys to access your accounts. The Dashlane app on your lost phone remains protected by your PIN, fingerprint, Face ID, or Master Password.
Apple Keychain/Passwords and Google’s password manager give the option to store passkeys in the cloud. So, if you lose an iPhone or Android device where you’ve stored passkeys, you’ll still likely have access to them from other devices.
If you can't access your passkeys on any device, the process for recovering your account will depend on the website or app you’re using. For accounts that use both passkeys and passwords, you’ll likely be able to use your password to recover the account. Some sites and apps might send you a recovery email like they do when you reset your password.