Iphone Pro Max 12 Yellow tint issue

I have the same issue. If I put the iPhone 12 right next to the old iPhone Xs you can tell how yellow and dull the colors look on the 12. I talked to Apple support and they're going to replace the phone. Just waiting for them to send it . . . I hope the new one doesn't have that same issue and/or I hope they don't replace it with a refub like they did whenever a brand new iPhone 5s had a defective battery . . .

I see. Interesting. Mine came with 14.2 and it was yellow right out of the box.

iPhone Xs Max on the left. 12 Max Pro on the right:

Hello,

I believe that Apple is aware of the issue and is researching it.

Good luck.