I do. The Huawei m40pro has a Beidou chip. This also allows the screen thickness can be controlled within 1mm, and the LCD does not have the ability to emit light alone, must rely on the backlight layer liquid crystal layer to achieve light and color changes, which is why the LCD screen is generally thick.
The second point is the display quality, the OLED screen can independently control the individual pixels, so that the black part does not glow at all.