Disable the app for both desktop and mobile from the settings page by clicking Disable in front of Desktop Settings and Mobile Settings

Once the app is disable, no one can see the cart drawer on your store. To see it in action, just open your store and append a query string ?ucd=1 to the end of URL.

Suppose your store domain is https://my-awesome-store-url.com and you want to preview the cart drawer on home page, you will open it with the url https://my-awesome-store-url.com?ucd=1

More examples:

https://my-awesome-store-url.com/products/my-custom-product?ucd=1

https://my-awesome-store-url.com/products/my-custom-product?variant=some-id-here&ucd=1

https://my-awesome-store-url.com/collections/my-collections?ucd=1