Image reportedly shows iPhone 12 design with smaller notch and iOS 14 home screen widgets

As a continuation of a purported leak of what the iPhone 12 camera bump will look like, the same Twitter source has now shared a larger image that shows the supposed front of the iPhone 12 as well.
What appears to be shown is a new design iPhone 12 with a notch that is less wide than the current iPhone 11 series. The outlined graphic shows a stylized representation of the home screen, as if this image was meant to be used in an instructional manual somewhere. However, 9to5Mac cannot confirm its