Only M1 models pair the LCD to the Logicboard. All Intel models are not affected. If you lose that function, it’s because you have bought a Low quality part. Even good third party OEM LCDs have True Tone. From what I know, there’s only 1-2 large Chinese firm that distributes original LCD assemblies to the smaller Chinese firms.
Please do not spread disinformation. Only iPhones are paired. For Macs, only M1 models and above are paired.
2016-2020 Intel models do not have such issues.
That said, Apple may have slowly removed that restriction. I’ve just replaced a MacBook Air 2020 M1 original LCD, and to my surprise, True Tone worked.
I cannot confirm what are models have that restriction removed, and whether it’s done at the MacOS firmware level, or at the LCD I/C board level.