Google is improving 2-Step Verification so everyone can use Google prompts to sign in securely and better protect their accounts.
If you use phones that currently don’t get Google sign-in prompts, they’ll be able to get prompts after July 7, 2020. Going forward, any eligible phone you add to your account will also get prompts.
In most cases, other 2-Step Verification options will continue to work as backup second steps.
How Google prompts protect your account
After you enter your password, Google sends a secure push notification to every eligible phone where you’re signed in. This prompt tells you when and where your password was entered, so you can decide whether to approve or block the attempt to sign in.