Same procedure as every year for me also, annoying.
I had a regular 15 Pro at launch which had very noticeable red tint on the right side and was immediately returned.
I went for a Pro Max a week ago when they were available at my local Apple Store and was happy that it seemed i got good one, at first glance. No extreme tint when powering on for the first time and i did some grey uniformity tests which showed very good results and usually go hand in hand with tinting on other colors.
But after some more time with the phone i noticed that i also got a brighter/cooler bottom half screen, whilst the top is warmer, especially the top right, like others here have already shown.
I still might keep it, since i already gave my previous phone to my wife and i‘m also tired of the screen lottery that i already played a lot in my life. But it’s just sad that Apple isn’t willing to up their QC and still charges you premium money for a phone with a high chance of getting a mediocre screen.