How to make JQuery load on top of head tag before everything

my website and plugins insert some jquery code between HTML tag and also whatever I do to insert jquery as a first script in the head section I can’t get it to work

I tried

function use_jquery_from_google () {
    if (is_admin()) {
        return;
    }

    global $wp_scripts;
    if (isset($wp_scripts->registered['jquery']->ver)) {
        $ver = $wp_scripts->registered['jquery']->ver;
    } else {
        $ver = '3.1.4';
    }

    wp_deregister_script('jquery');
    wp_register_script('jquery', "//ajax.googleapis.com/ajax/libs/jquery/$ver/jquery.min.js", false, $ver);
}

also putting

<script
  src="https://code.jquery.com/jquery-3.4.1.min.js"
  integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo="
  crossorigin="anonymous"></script>

directly into header.php and index.php of theme
but I got no success

so what can I do to make Jquery load really before everything
because editing third party plugin is really frustrating and time-consuming

UPDATE