FullScreen Menu to open the parent links - kary4/divituts GitHub Wiki
Try to apply this solution https://techjourney.net/top-parent-level-not-clickable-not-link-to-page-on-divi-mobile-menu-with-collapse-nested-items/ and replace the script with the following one instead:
<script>
(function($){
$('body.et_header_style_slide .et_mobile_menu').on( 'click', 'a', function(event) {
// if we're clicking on the arrow - don't do anything
if ( event.target.nodeName.toLowerCase() === 'span' ) {
return;
}
// if we're clicking on the link and it contains the arrow - open the link URL
if ( $(this).find('span.et_mobile_menu_arrow') ) {
window.location.replace( $(this).attr('href') );
return false;
}
});
})(jQuery);
</script>