I have an iPhone 12 pro purchased about a month and a half ago, running the latest IOS, whatever that is, and at least when composing text messages, and I think email also, and elsewhere, the cursor does appear where I place my finger in the text, except occasionally it will's get stuck and not move to where my finger is, unless I tap on the screen at the new location to get it going. Touching the space bar, or below it, also works but you have to hold your finger there all the time, although is a little easier to see where the cursor is because it's a very long line, up away from your finger. I see that they cursor does become an elongated when your finger is on the text, but it could be a little longer as sometimes if you move your finger down a little to see the line of texture working on it follows your finger rather than remaining on initial line, or maybe that's because I lifted my finger briefly. I wish they would bring back the keyboard with the left and right curse arrows which makes it easier to manipulate the cursor within a word. Sometimes the cursor seems to have momentum where it will keep going a little after you lift your finger if there's any motion before that, which is annoying. I don't know the glass screen protector has an effect one way the other on the behavior of the cursor in response to touch or not.