Why does the National Geographic photo wallpaper insist on 4: 3 instead of 16?

The 4:3 ratio photo information is more complete and contains more pixels. For example, the resolution of 3264X2448 is set to 4:3, which means 3264X2448. If it is set to 16:9, the maximum resolution of the photos taken is 3264X 1836. In fact, the photo of 16:9 is based on the photo of 4:3, and the upper and lower parts are cut off, leaving only the middle part. In the post-processing of professional photography, photographers usually decide how to intercept according to the picture, and automatically intercept if they can't shoot it.