How to rename a file with Jquery before download it?

I have a html-jquery script to download a lot of files.
This files are downloades by calling the event onClick on all those url. They are automatically saved on Download folder. But I would like to rename the files before they are saved on Download dfolder.
How can I do it? This is my code:

<script src=https://code.jquery.com/jquery-3.6.0.min.js 
</script>
    
    
<script id="funciones">
        var count = 0;
    
        function linkGen() {
            var requestId =[
                ['111111111111111111111111111111111111','7373'],
                ['222222222222222222222222222222222222','8888'],
                ['333333333333333333333333333333333333','6767'],
                ['444444444444444444444444444444444444','9999']
            ]
            
    
            count = 0;
            var html = '';
            $.each(requestId, function (item, value) {
                var link = 'https://mylink.com/index.php?entryPoint=download&id=' + value[0] + '&type=Note';
                count++;
                var fileName = value[1] + '_' + getFileNameFromUrl(link);
                html += '<div><a href="' + link + '" id="link' + count + '" download="' + fileName + '" onclick="event.preventDefault(); window.open(`' + link + '`, `_blank`);">Link ' + count + '</a></div>';
            })
            $('div').html(html);
        }
    
        function getFileNameFromUrl(url) {
            var parts = url.split("/");
            return parts[parts.length - 1];
        }
    
        linkGen();
    
        link = 0;
        function down() {
            if (link <= count) {
                var enlace = $('#link' + link).attr('href');
                $('#link' + link).click();
                link++;
                console.log(link + ' - ' + enlace);
            }
        }
    
        function buttonOn() {
            setInterval(down, 1000);
        }
</script>