At least Google allows you to turn off SMS as a "2FA" source. You can set up Google Authenticator (or Authy) and a Yubikey as 2FA sources, then remove your pho

At least Google allows you to turn off SMS as a "2FA" source. You can set up Google Authenticator (or Authy) and a Yubikey as 2FA sources, then remove your phone number. Much to my surprise, I was able to do this with PayPal where I set up two Symantec VIP Access IDs and was able to remove the phone number. I wish I could do this with other accounts.