As you can see that, there are some similar features between MP4 and MOV, still there are a number of serious differences.

MOV VS MP4: Combability
In the terms of combability, MP4 is best used in all operating systems and media players except iOS devices and Mac computer.

The MOV format is often used in professional environments like QuickTime (even for Windows).

Moreover, when you want to stream or edit the videos, MP4 is the better choice.

MOV VS MP4: Quality
Though both are the lossy format, MOV is better in quality, because MP4 gets a larger compression with a smaller size while MOV keeps the high quality with the larger size in file, while choosing the same codec.

Free Converter to Convert MOV MP4： https://www.free-videoconverter.net/tips/mov-vs-mp4/