I’m confused what this is, could someone explain in simple terms what this is, my Apple ID is ending with Gmail will this effect me? I’m guessing this isn’t letting us change our iCloud email address?
You don’t have to do anything. I’m using an old gmail account as well. What Apple is letting you do now is change that to one of your Apple email accounts. This wasn’t possible before for some reason.
You don’t have to do anything at all, just leave it Gmail if you desire.