I can tell you that there are indeed kitchen designs that incorporate cutting boards that slide out over countertops.
These sliding cutting boards are often referred to as "pull-out cutting boards" or "under-counter cutting boards." They are designed to fit into a specific cabinet or drawer and can be pulled out when needed for food preparation. These cutting boards provide additional workspace and can be easily tucked away when not in use, saving valuable countertop space.
Pull-out cutting boards come in various materials, such as wood, plastic, or composite materials. They are a popular feature in modern kitchen designs, offering convenience and efficiency for cooks who want easy access to a cutting surface without cluttering their countertops.