Today I received my 11 Pro Max replacement device. Produced in calendar week 36. End of September. The display is exactly like my device before. Slightly warmer calibrated, but okay. Remarkable: When the auto brightness is off, the display brightens and shines after 8 seconds. Although nothing is regulated by the brightness. Hopefully a bug. Or Apple saves battery on this way.
Other thing: Are the edges of your 11 Pro's between the display and the stainless steel frame "sharp"? My Xs Max was buttery soft. The 11 Pro models in the Apple Store are all "edgier".
I've gotten 3 the first round and 2 the second round and they vary in smoothness and display uniformity. I posted on here a URL for people too pose their production weeks and the first 3 were from week 35 and the second were week 37. The week 37 models still have the display uniformity issue on low brightness under gray which is the stress test and I"m thinking it's just a matter of being ok with it, finding one not as poor as another, or returning it.
The sides of thee units and the buttons even have variances. One had a mushy volume down button, another had shaper edges, some semi sharp, and others were very smooth. So like anything mass produced, it simply comes down to lottery, and getting a unicorn you are ok with.
Apple isn't being very strict on the tolerances this year in some ways, and better than others in different areas.
I think the displays intentionally are designed to be more yellow and we might see that lesson in time.
Additionally, OLED by nature will even out and wear over time with varied content. But the large swings in gray color uniformity will by in large always remain to an extent. Seems to be related to voltages running through he back of the panel and one area having a ever so slightly higher amount of power than another area.
Having gone through the thread and watched and my own experiences, this years models are more yellow despite what anyone says. Some are worse however.
There are some fit and finish issues and some units arriving with damage. Which also doesn't differ from previous years.
And it comes down to you being able to adjust to the new way these are set up or you stay on what you had assuming you don't want to switch to Android. But that's the way it is ladies and gents.