I can't believe that. I just can't.
All iPhone X reviews mention the screen tech difference, all of them say how they don't notice a difference.
It's not about "appreciating". It's that it doesn't matter. Everyone talked about retina resolution, then about "true colors".
Today we have Samsung making all the screens.
The point is, nobody except professionals care.
The colour reproduction on Samsung phones is just awful after spending so much time on MacBooks and iPhones. Over saturated and as you increase brightness it washes everything out.
What makes the screen different is that the colours aren't oversaturated like Android phones. It was identical to the iPhone 8 screen (LED) only significantly brighter.
From what I've read what makes it better are things like the reduced blue-shift that occurs when moving the phone and the significant reduction in burn-in effect. But what most people will think is that it is the colours that make it better. Even though that could largely be software.
(Speaking as the owner of the Plus, who has his first replaced and the second is somewhat better but not perfect. Wife's S8 is also affected but she doesn't see it or doesn't care. I would still take that slight imperfection over the horrid notch though).
I don't know how true this is, but I've heard that the Samsung OLED screen on the iPhone X is significantly better than the ones Samsung puts on it's flagship phones, in color fidelity especially. Partly because of Apple's attention to detail, but also because Samsung's flagship phones ship in much higher volume than the X is expected to.