Okay, so following up on my trip to the Apple store. Long story short, the replacement unit had a slightly less yellow tint to it but had worse brightness uniformity (top half was dimmer) than my current one. The top left notch also had a nasty pink tint when viewed off angle. I asked for another unit but was refused so I guess I’ll have to live with my current unit.
When I showed my screen to the Genius staff, she agreed it was “slightly yellow” but told me that OLED panels have more variation across the board and that it’s supposed to be normal. Least to say I am disappointed by their service because there were clearly much better panels on the demo units in store. I’m still a non-believer on OLED screens for color accuracy.