Google has made it feasible For G Bundle and Cloud Invite users to enroll security keys utilizing either Chrome on Android apparatus (using at Android 7.0 Nougat and Chrome 70) and Safari on Macs (13.0.4 and afterwards ).
Including both keys you have registered independently and ones in the Advanced Protection Program for business users.
The choice is available. It is not a Shock that service would extend.
That, consequently, should avoid some account hijacks and other intrusions.