Yes! Elementor uses Flatpickr under the hood, so you can override its default date format with a bit of JS. For example, add this in your theme’s functions.php or via Elementor → Custom Code:

add_action('wp_footer', function() { ?>
  <script>
    jQuery(document).ready(function($) {
      setTimeout(function(){
        $('.flatpickr-input').each(function(){
          flatpickr(this).set('dateFormat','d/m/Y');
        });
      }, 1000);
    });
  </script>
<?php });

After the new update you also need to make one change in the settings as shown here: https://youtu.be/z3Dk0GzXIHA