Steve C said:
I don't need to access secure web sites 'outside'
Well good for you, but I have been in a few situations, I needed to access such sites when I was outside.

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z3r010 said:
You may want to look at replacing Google Authenticator with Authy as you can use it across multiple devices and there is less chance of getting locked out of your sites if you lose or break your phone.
Thanks for advise, will check it.

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One more question: Should I disable SMS two-factor verification in my google or/and even authenticator app if I use Google prompt?
Logically, if hacker wants to breach your google account and he can't with google prompt, he could use different method like SMS two-factor one and hack it so he gets the code and breaches my account right? Or he will still have hard time to breach it if I have enabled google prompt?

In short, should I disable SMS two factor and/or authenticator app too and just leave google prompt which seems best one from all these 3 or have them all enabled?
How you guys have configured your google accounts?