The Cart Page Settings allow users to customize how the shopping cart functions and appears in the store.
Log in to your Shopify admin.
Navigate to Online Store > Themes.
Find the theme you want to edit and click Customize.
Go to Theme Settings > Cart Page.
Enable Order Notes : Allows customers to add special instructions or notes to their orders.
Cart type: There are 2 types of cart options drawer and page cart.
Drawer Cart : Displays a sliding cart sidebar when a product is added.
Page Cart : Redirects customers to a separate cart page.