I always see this argument but from experience I don't buy it. FSD and its cameras work fine driving with the sun directly in front of the car. When driving manually I need the visor so far down I can only see the bottom of the car in front of me.

The cameras on Teslas only really lose visibility when dirty. Especially in winter when there's salt everywhere. Only the very latest models (2025+?) have decent self-cleaning for the cameras that get very dirty.