In never understood the brightness complaint from users.
Let's say the display does 10k nits. But if you use it during the day and daylight falls in through your window, the dark scene of 50 nits (shadow areas for example) will be clipped ANYWAY.
The super bright display would only make the whole image visible in daylight.... if you destroyed the whole image and raised the whole range to 10k nits in sdr. Like flat... but that's idiotic.
And while 800-1000nits (typical OLED peak) might not sound like enough because outside is 5k grass, 30k, sunny spot etc.... people tend to forget that your eyes adapt.
Once you spend few minutes inside your room, you wouldn't want 30k screen imitation a daylight window in front of your face.
That brings me to the fact that ANY display and ESEPCIALLY HDR OLED, should be used for critical media consumption (consumption where quality matters to you) in a shaded room or at night.
Just so you don't loose any details of areas shaded 50 nits, 300 nits and the whole range.... and at that point, you are used to the image so much and your eyes adapted, that 800 nits are SEARING YOUR EYEBALLS. In fact, I would hate for displays to be any brighter than.... maybe 1500 nits and that's pushing it.
And in SDR, the whole screen goes up to 150nits on worst oleds and that's 50 nits more than is recommended for sdr spec.... so it's great.
And here is an example of me playing uncharted 4 with HDR in the middle of the night. Dynamic tone mapping on lg c1. Fkn hell:
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