Without that setting it doesn’t crop at all.
Are there some standard photographic ratios that are common and might be interesting as different aspect ratio presets? Like Polaroid for 1:1, 35mm 2:3? Anything else; would love to lean-in on that.
Discussion
Thanks for the feedback! Here’s what I’m seeing on iOS with version 0.20 Build 313.
The photo is 2:3 in portrait orientation and displays the whole photo when clicked. Great 
If the content preference is set to “Squared Posts” it’s cropped almost to a square, but unexpectedly not quite 
And if “Squared Posts” is disabled, it’s cropped to 4:5, when I would expect it to show the full image unscripted 
“Uncropped” (sorry, autocorrect)
The traditional 3:2 aspect ratio of 35mm film was carried over to full-frame and APS-C digital sensors. Smaller digital sensors tend to use 4:3. Medium format has 5:4, 3:4, 3:2, and of course 1:1. Polaroid flim is, interestingly, almost but not exactly 1:1.