No one is calling you an idiot, relax. The S7 is a 4 years old device meaning that the brightness of its display could've gotten deteriorated after all these years.
Hello @Anders_ASUS ,
Even i've been annoyed with this black crush issue and the red tint, if we can ignore also. But the black crush issue is spoiling even the ultra HD videos in dark/greyish theme in scenes, which is totally unwatchable and can't see the view properly. But that is very much disappointing.
Not sure it s a hardware issue or software.
It doesn't have as much to do with the resolution as it has with bit rate. To show a lot of detail in grey areas takes a lot of data.
There's nothing we can do about this. If you want better viewing experience when you're sitting in a pitch black room, then you need to download videos with high bitrate. Huge files. Streamed material like Youtube will always have low bitrate
If you going for download, try downloading 10bit HEVC videos encoding, this encoding has higher quality with same bitrate.