Visibility: The visibility option defines the privacy of the product. By default “Catalog and Search” is selected. But if you want the product to only appear on category listing page, search results or want to list as a hidden product, then you can select the option respectively.
If you select any other option than Catalog and Search then the product will not appear on the site other than the store page.
Purchase Note: If you want the customer to receive a custom message right after purchasing the product, you can paste that in the box.
Reviews: If the seller does not want to receive reviews for the product from the customers, he can turn it on or off.