OP, view this thread, you’re not alone.
https://forums.macrumors.com/threads/combined-iphone-x-yellow-blue-shifted-display.2083752/
Not sure if you’ve seen it already, if not take a look. There’s wild variance with this display and it’s considered normal.
Some are yellow or very warm head on and quickly shift to perfect white at a slight angle. Then shift to either pink or blue. This really annoyed me in the screens I’ve seen like this.
Some have pink edges all around and / or shift to pink at an angle. Also hate this screen type because the edges were always pink on ones I had.
Some are fine head on and range from slight to extreme blue shift at an angle.
Some shift to pink first and then blue.
Some have unevenness from top to bottom (pink shift toward top and blueish toward bottom).
Very subjective re: how much you can tolerate. If it’s too much return it. Personally I hate pink shift and have returned and/or sold phones that suffered from it. Ideally the screen should be neutral head on with a slight blue shift at an angle, in my opinion.