Hi, the Woocommerce Notices are ending up at the very top of the checkout page, behind the page header, making them unreadable on both desktop and mobile.
The issue is that you have created only a “Checkout form” layout, for the correct work there should be the “Checkout top content” – https://prnt.sc/-7i8cTEXkYbW
In general, the checkout page contains two different areas that need to be customized separately. A checkout form that will contain all checkout fields and buttons, and Checkout top content needed for login and coupon forms, notices.