Glass back slight gap in one of the corners

I got my FOURTH Galaxy S8 replacement, finally one with no issues with the screen however this one's glass back is ever so slightly raised above the metal frame in one corner. Of course, it's the bottom right corner, the only one that actually matters when interacting with the phone right handed. I've watched videos of glass back replacement and it looks easy enough but I was wondering what are the chances of me fixing this by heating up that area and pressing the glass down somehow? Even a tenth of a millimeter would be a big improvement as it protrudes JUST enough to catch the skin when making calls. I don't want to use any kind of case.