It's an anti-abuse mechanism, apparently: https://support.google.com/accounts/answer/114129?hl=en … (Any phone number works because it's not OTP-related, the point is to make mass account hijacking more costly/difficult.)
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It's an anti-abuse mechanism, apparently: https://support.google.com/accounts/answer/114129?hl=en … (Any phone number works because it's not OTP-related, the point is to make mass account hijacking more costly/difficult.)