It will not be clear how it will appear in the application, but Google plans to use QR codes to check phone numbers to “avoid safety problems”. Users scan the QR codes using the camera of their mobile devices and check the Google phone number directly from the operator.
In some cases, the SMS message can be sent to the Google number from the user’s phone, so it is probably not planned to be completely rejected.
However, if the user does not have access to the mobile device, reserve authentication methods will not be available. The presence of a mobile device remains unchanged to receive SMS messages.
Source: Ferra

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