Add custom image background to advance header (page header ) on shop page.

gistfile1.txt

add_action('wp', 'featured_image_call_back');

function featured_image_call_back(){
    if(is_shop()){
        add_filter('astra_advanced_headers_title_bar_bg', 'adv_header_call_back');
        
        function adv_header_call_back(){
            //Your featured image URL here:
            return 'http://woo-commerce.test/wp-content/uploads/2020/05/men-fashion-free-img.jpg';
            }
        }
}