In that case:
1. You can disable the Breadcrumbs in Customizer > LAYOUT > Woocommerece.
2. You can add this PHP Snippet to disable the light box:
function remove_image_zoom_support() {
remove_theme_support( 'wc-product-gallery-zoom' );
remove_theme_support( 'wc-product-gallery-lightbox' );
}
add_action( 'wp', 'remove_image_zoom_support', 100 );
How to add PHP: https://docs.generatepress.com/article/adding-php/
3. Add this CSS to make the product image fill the screen on mobile:
@media (max-width: 768px) {
.separate-containers.single-product .inside-article {
padding-top: 0;
}
.woocommerce #content div.product div.images {
margin-left: -20px;
margin-right: -20px;
min-width: 100vw;
}
}