If the person can view the image through the glass directly probably. Not so much if it’s put onto a screen or printed. In simple terms the data is “flattened” and will just appear extra blurry rather than correcting anything.

For a full explanation you’d want to learn about how glasses work to correct vision in general. Maybe how camera lens focus or how light refraction works.

I would think so. If one is nearsighted and can resolve the display of a camera, then focusing the camera on a distant object should let the viewer see the distant object without any other vision correction.

I think not, if the camera uses a screen to display images it’s essentially the same as an image on our computer/phone, as a bunch of pixels a fixed distance away from our eyes. Change focus point of our eyes can’t unblur an image.

However if there’s a camera that when taking photos the person looks directly into the lens, it will be different. Here the lens funcions as glasses.