Moreover, JPG is a widely used image format and is compatible with playing on some devices and players.
So if you want any particular frame/frames in the form of still images, you need to convert MOV to JPG. Videos, in general, can be termed as a collection of some frames. MOV is a popular and standard format used by video files in the Apple QuickTime application. “How can I convert MOV to JPEG or JPG in macOS Mojave 10.14 ?” - A Question from Quora
