The problem was called Flexgate, and its cause was structural flaws in the MacBooks.
According to the iFixit website, MacBook Pro 2016 and later has a very short display backlight cable. Because of this, with a regular opening of the lid of the laptop at an angle of more than 90 degrees, it wears out quickly.
Recommendation not to open the computer at an angle greater than 90 degrees
Since the cable is part of the display design, the replacement costs $ 600, since the entire module must be replaced. Change.org users have launched a petition calling for Apple to change the warranty loop.