On iPhone, I know with an image, I just click the 3 dots, and select “save image”, however I can’t seem to do that for a mp4. I tried tapping (pauses the video) and long pressing (doesn’t do anything). Do you know how to save a video from Voyager?
Long press on a .gif brings up a menu with “save to photos “ and “share” (I don’t remember the 3rd menu item but didn’t seem relevant to your question anyway) those give you some options for saving. I just verified on iPadOS but should hold for iOS too.