Yes I know about the dimensions but the point I am making is, you squeezed it and its very obvious and glare that those with the FS are edited and did not come from actual Device.
You said you do not have physical device, so I believe you are using Xcode on Mac. I think you can create different device sizes in the Apple simulator and take the screenshot.
For me, I use hosted builder, but I compile and run in appetize.io which has different screen sizes for screenshot.
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