Filmora X is a video editing software for beginners that includes advanced features in a simplified version, such as keyframing, masking, beat detection, motion tracking, and more, while FilmoraPro is a software designed for enthusiasts with more professional tools.
Filmora X is easier and gets the job done quickly but lacks some advanced features if you are making complex videos, such as short films.
FilmoraPro has more professional features, but its interface is not as friendly. I think that editing a simple video will take you longer with FilmoraPro than with Filmora X