Spent about half an hour looking at iPhones in store just now
17 Pro: absolutely none with green tint on tilting, vibrant displays. Some had a little brightness variation between the top and bottom but nothing serious
Air: all (maybe 6-7 units) had pretty significant green shift when tilted
17 PM: 30-40% Samsung display, the rest LG with pretty bad green tint
So it seems like 17 Pro is the way to go this year if you want a pretty much guaranteed chance of a Samsung display without significant green tint at the bottom of the display. If what was true last year (Samsung using more advanced display materials for better contrast/image quality) is true this year then I will give 17 PM a couple tries & if my luck is bad, will just pick up a 17 Pro and call it a day