I do not think God would choose to give new information that would contradict the record that He had established thousands of years earlier. The god Muhammad proclaimed does not exist. Muhammad’s revelations came from demons. The name Allah was used in pre-Islam Arabia to refer to one of the 360 idols in Kaaba. Allah was supposed to be the greatest god. Some tribes used the name to refer to the moon god. I believe that Muhammad presented stories and principles from Scripture as part of his strategy