So I insert my USB into the phone and get access to my photos and videos. However I can't see a direct "download file" button which means I must screenshot it. Is there such a button or another solution?

    Clark I usually long press the a until it has a checkmark next to it, then select any others I want to move, then tap the 3 dots in the upper right hand corner to move the files. Does that work for you?

      I don't know why I didn't think of copying them, thank you both for reminding me that's an option!