Smartphone cameras are (bad and) very limited. Their sensor is very small and their lenses have to be flat, very small in diameter and cant have moving parts (maybe the aperture moves not sure). All this means they capture very little light on a ultra dense sensor (dense sensors have bleed where one pixel is influenced by the interference of the photons hitting the pixel next to it).
So they cheat. Wherever they can. They often take multiple pictures at the same time using multiple cameras and overlay them digitally (black/white and color). And of course they need different cameras with different lenses because they can’t have a zoom (moving parts). They also heavily edit the pictures without ever telling the user.
Often a smartfone image will look better than an unedited image taken by a 5000$+ camera. At least until you zoom in and look at the colors
