Years ago you could buy a +1 close up lens which was not all there. It looked like only half of a lens (or filter). The other half was air.
Putting this in front of a prime lens allowed you to have half the image in focus at 1 meter, while the other half was in focus at infinity, with the lens wide open. Stopping down the aperture increased the depth of field. You could, of course, focus at a hyperfocal distance, stop down the lens, and have a large area in focus at a distance, and the foreground would be in focus at slightly less than 1 meter.
There was a distinct boundary area in the middle of the frame which became more obvious as the lens was stopped down ( you were getting a shadow from the edge of the 1/2 lens) but the pictures I saw using this setup were often composed with this effect in mind.
The nearest I have seen to this recently is half-frame reading glasses. https://www.readingglasses.com/products/eurospec-39/?color=Brown
The tops of these eyeglasses are not high enough for a person to look through.
These are meant for a person to either look through ( by looking down ), or look over ( by looking up)
As an experiment you might try finding similar reading glasses at a discount or ‘dollar’ store, breaking the lenses out of the frames, and holding them in front of your camera lens. These reading glasses are sold in various ‘strengths’ or diopter ratings, which refer to their focusing distance.
You can calculate your focus distance in millimeters by dividing 1000 by the diopter number, so a +1 reader lens is in focus at 1000 mm while a +2 is in focus at 500 mm ( about 19”) You can find reading glasses going up to +3 in increments of .25 diopter.
Many of the cheap reading glasses are made with plastic lenses. You can use a power sander to reshape the edges to give you something other than a straight shadow line or blurred area across the middle of your pictures. These are cheap, so experimenting is too.
I’ve used this for a wedding ‘special effect’ where the bridal announcement or invitation would be in the foreground, ( and in focus thanks to the half-lens) while the ceremony or a portrait of the couple would be on the top half of the picture. The trick was to focus on the far image conventionally, then move the near image until it came into focus.