Yes flawed. If you have a bitmap that's using a wide color space (e. g. P3/OLED) and it has a green (0,1,0) pixel then that's referring to a color than an LCD d

Yes flawed. If you have a bitmap that's using a wide color space (e. g. P3/OLED) and it has a green (0,1,0) pixel then that's referring to a color than an LCD display cannot possibly show. 0,1,0 on an LCD is a less saturated green. The OS changes color values to try to make things look as much as expected as possible, and that results in color clipping. A screenshot saves images as sRGB and so no remapping is done upon display.