I think it is true that you can's export passkeys stored in Apple Keychain. However, the statement is false in two ways:
- Apple's iCloud Keychain syncs across devices
- Apple has APIs that allow third party apps to create and offer passkeys, presented as a first-class option in Apple's authentication system. I use this to sync my passkeys between my Mac, Windows PC, and iPhone.
- Apple's iCloud Keychain syncs across devices
- Apple has APIs that allow third party apps to create and offer passkeys, presented as a first-class option in Apple's authentication system. I use this to sync my passkeys between my Mac, Windows PC, and iPhone.