MediaInfo Fourcc Values
FourCCs are Microsoft's ID tags for streams e.g. avc1 for H.264/AVC or mp4a for an AAC audio stream. The container doesn't really matter.

If you want to change the FourCC, use ffmpeg like so

ffmpeg -i input.mov -strict -2 -c copy -vtag ABCD new.mov


where ABCD is your new 4CC/tag.

You current file already shows avc1 for the video stream, which is default and expected.