So I’m on my 3rd iPhone 12 pro. First two were dull. All auto features off, max brightness was less than the Xs. And the terrible yellow True Tone.
the 3rd is normal brightness but the True Tone is truly disgusting, still. So yellow.
So I think there are two issues here. Low screen brightness and a True Tone fault.
The auto brightness assumes a certain level of output. If the screen is under par, it will auto adjust to be always a bit dark.
the third phone with true tone off is actually fine. But True Tone is shocking.
can’t say if True Tone is a hardware issue or software. There could be a perfect storm of hardware and software issues. I do agree with one poster it’s related to trying to save battery. Along with low brightness screens and maybe a bad sensor. Maybe this new glass filters light oddly, so the sensor is fooled. But that could be fixed in software, before release!!!
what I cannot fathom is how apple can let this happen so widely.