2b - Google Profile Account Settings (Logged In User Profiles)
2FA/MFA Settings in Google Accounts (where to find):
Manage your Google Account > Security > 2-Step Verification
 Â
You can setup one or multiple types of 2FA/MFA (explained within the Google screens):
Google prompts - (Google default and it happens on any "eligible phone" you are signed into your Google Account)
Could be multiple devices
Voice or text message (multiple phone types - can't use Google voice)
Backup codes - (requires a printed copy of codes)
Authenticator app - (requires smart phone)
Security key - (requires purchasing a key - yubikey is the most famous -Â https://www.yubico.com/products/Â - also available on Amazon)