The lighting works different. In Bing and Google you have ambient light that is everywhere… Try it, you can go around a large building in a city in Bing 3D, you won’t see any light difference, the photograph taken for that spot decides the light. The sun is a directed light. See Coppersens remarks: in MSFS you have the direction of sunlight, that will decide if you see dark or light on wands (buildings) below you. Better simulation of reality.