Thank you; peek mode + swipe up does prompt to save the image and I did not know that. Based on user feedback, the "press-and-hold" method is the only one peopl

Thank you; peek mode + swipe up does prompt to save the image and I did not know that. Based on user feedback, the "press-and-hold" method is the only one people commonly know about, and the major issue is that if you accidentally peek (or even imperceptibly drift into peek mode for a few ms) it won't work, and you won't get any feedback as to why. It's handy to have a second way to trigger save, but having to include the explanation in order to teach users how to execute the maneuver is not great UX. "Press gently and hold to save. Or, if your phone supports Force Touch and has it enabled, press pretty hard (but not _too_ hard) and swipe up to save. If it doesn't work, try it again."