1/ We limited the depth of the mobile menu because in amp version it is not yet possible to make good open/close actions for menu items that have submenus and all of them are shown at once.
We added a filter (it will also be included in the plugin update) and a few lines of custom CSS (XStore Control Panel -> AMP XStore -> Custom CSS)
The result will be next -> https://prnt.sc/37Zd7NrLUI9m
2/ Because AMP uses minimal code for quick loading, it can’t include all the elements on a fully functioning webpage, such as certain widgets, embedded content, or pages created using page builders (Elementor/WPBakery). This means that a webpage viewed with AMP looks like a mobile application to facilitate the user experience and doesn’t look exactly the same as how the original page would appear on a desktop or laptop.
XStore AMP allows to adjust the Home page elements, supports WooCommerce pages, Blog and posts (because pages/posts come with simple styles and texts), pages created by Elementor/WPBakery displayed in non-AMP version.
We added custom CSS code to hide some blocks, that can’t be displayed correctly, on your site.
“Add to cart” button is available for single product page only, not for Shop.
3/ it is added but AMP does not allow to use extra scripts from other resources so the shortcode was added but it was not rendered and will not be.
4/ This issue was created due to 3rd item and described above.
5/ Few of your categories have broken images -> https://prnt.sc/adN9gzv2cem1 that is the reason why you have it broken on the frontend -> https://prnt.sc/fqd7M1yAoffa Also we show only product categories which are not empty (have at least one product).
One standard license is valid only for 1 project. Running multiple projects on a single license is a copyright violation.