I have a windows computer so my only option to work with pro res film is through premier rush internally through the iPhone alone. I am confused why I cannot directly upload the prores film to the app. I understand that the desktop functionality is there, however, I cannot get my prores film on premier pro without it compressing to MOV.
All movies recorded on an iPhone with the Camera app are MOV files, be it "More Compatible" (H264) mode, "High Efficiency" (H265) mode, or "Apple ProRes" mode.
How are you transferring our iPhone Apple ProRes video recordings to your Windows computer? Some methods will transcode large video files (like ProRes) to smaller files to make transfering video more low-bandwidth friendly. Of course, when it's footage that we plan to use in our edit we want to avoid this.
Here's Apple's official list of options for transferring files between our iPhone and our computer: