Also, iOS 17 adds using your third-party password manager for using (signing challenges with) passkeys.
The only issue I can find is that you can't select two or more third-party password/passkey filling apps, unless one is "iCloud Passwords & Keychain". So if your setup is 1Password for passwords and iOS for most of your Passkeys, you can do that, but hopefully you use the same third-party passkey and password implementation.
The only issue I can find is that you can't select two or more third-party password/passkey filling apps, unless one is "iCloud Passwords & Keychain". So if your setup is 1Password for passwords and iOS for most of your Passkeys, you can do that, but hopefully you use the same third-party passkey and password implementation.