I tested and it looks like the iPhone lowers the peak nits based on the brightness slider, so the HDR reels aren’t “max phone brightness” bright, like they’re t

I tested and it looks like the iPhone lowers the peak nits based on the brightness slider, so the HDR reels aren’t “max phone brightness” bright, like they’re trying to be. Dunno how that compares, but yes, it’s present to some degree. (Low Power Mode disables EDR, which works around it, but has other effects as well.)