Well True Tone does honestly look best on an LCD display. I have tried the iPhone X, XS Max, and fully owned the 11 Pro and have always thought True Tone on the OLED looked like weak tea in most lighting.
But if your phone looks too pink with it turned off, and you’re unhappy with it, by all means see if you can get a better replacement. Because the sad fact of life is even this far into OLED use on phone displays, there is still some variance and some displays do look better than others.
I did note more uniformity across iPhone 11 Pro and Pro Max displays. But it’s a new year and they possibly may also be using a different manufacturer for some of the displays. I’m not sure, but I read some rumors that indicated the possibility at the time of publication. Even if they’re all made by Samsung, after years of owning Samsung phones with my husband, I have seen significant OLED display variances across the same models. Apple has a tighter spec, but I’ve seen variances in Apple’s OLED, too.