FIDO Security Key

Hi there, when you use Security Keys for Apple ID, you need a trusted device or a security key to:

• Sign in with your Apple ID on a new device or on the web
• Reset your Apple ID password or unlock your Apple ID
• Add additional security keys or remove a security key

Note that the "trusted device" language means that if someone knew your iPhone passcode and had physical access to your device, they could still change your Apple ID password under Settings > [your name] > Sign-In & Security without your security keys. They will also have access to all your passwords stored in your iCloud Keychain under Settings > Passwords.

Read more at About Security Keys for Apple ID

You can suggest this to the team using the Feedback - iPhone - Apple page. If a lot of customers want that option and communicate it, there is a higher chance you might see it on a future iOS update.