Use a video converter app or website
Open the MOV file in the converter
Select MP4 as the output format
Choose the desired quality or resolution
Start the conversion
Save the converted MP4 file
Use VLC Media Player to convert MOV to MP4
Use HandBrake to convert MOV to MP4
Use QuickTime Player on Mac to export as MP4
Use FFmpeg with a conversion command
Use an online converter if you do not want to install software