Elementor form – checkboxes validation

For anyone interested, I was able to resolve it like so:

function form_checkboxes_validation(){
?>
    <script type="text/javascript">
    (function($){
       $("#send-request").click(function(){
        if(! $('input[name="form_fields[suite][]"]').is(':checked')) {
        alert("Please select at least one suite!");
        return false;
        }
    });
    })(jQuery);
    </script>
<?php
}
add_action('wp_footer', 'form_checkboxes_validation');