Yes, this drag functionality still exists on mobile devices. To disable it completely, try to return “Without” value for that option and add this code snippet to the functions.php file in the child theme
function woodmart_is_main_product_images_carousel() {
$images_carousel = false;
return ( woodmart_get_opt('thums_position') == 'without' && $images_carousel ) ? true : woodmart_is_product_thumb_enabled();
}
If it will not help, please provide us your FTP access so we can check it directly on your website.