I think there is a issue with screen burn in on the iPhone 12. I am a heavy user with my phone, but I have only had it for a week and there is already a issue with screen burn in. I can already see the bottom icons of social media that i use a lot. I have heard of the other issues with the iPhone screens, but it was apparent when I updated my phone to a beta software. 3 weeks into a phone should not have these issues, three years is okay. i spent way to much money to see a plus on the bottom of my screen