When a product has an image, hovering over it will cause an arrow icon to appear (this is always visible on mobile). Clicking or tapping this icon allows the visitor to expand the image and view additional images.

There is no native option to remove this, but you can target the element using custom CSS (selected plans only).

One way of doing so might be:

.Choices > div > label > .material-icons {
    display: none;
}

As an alternative, switching to Card or Gallery layout will move the arrow to the corner of the image instead of the center.