Earlier reports claiming that the Galaxy Z Fold4 would sport a 108 MP camera from the Galaxy S22 Ultra have now been called into doubt. According to word on the grapevine, the foldable will be equipped with a 50 MP main camera instead, but will also offer 3x zoom better than that of the Galaxy S22 Ultra.
https://www.notebookcheck.net/Samsung-Galaxy-Z-Fold4-No-108-MP-camera-but-could-offer-Samsung-s-most-powerful-short-range-zoom-yet.619747.0.html