I’m one of those who really wants the old eye adaptation back. Having said that … I’ve gotten used to it to a degree. It most certainly is not unplayabe in the slightest.
You might wanna calibrate your monitor or TV if that’s the case. Do it with a Spyder calibration tool or just by eye with a brightness chart:
Adjust the “Brightness” (black point) setting until the darkest bar of the chart is the darkest, without making any of the brighter bars dark too, because that will kill details (black crush).
Do the same with the “Contrast” (white point) setting until the brightest white bar is as bright as it can get without making the second bar just as bright (blown out highlights).