Is 2FA tied to a single AppleID?
I've never used 2FA before. I have two AppleIDs. I am thinking about enabling 2FA on my iPhone while logged into one of my AppleIDs only because 2FA is required to get an Apple Card. But before I enable 2FA, I want to know if 2FA is exclusively tied to a single AppleID? Or will 2FA continue to bother me after I logout and then login to my other AppleID?
In other words, I don't want to turn on 2FA if all my AppleIDs will suddenly be required to use it. I only want to enable 2FA for a single AppleID. Is this possible?
Thanks.
iPhone 7