Redirect Login Based on User Role

function dashboard_redirect($url, $request, $user) {
   
    if (in_array('test_user_role', (array) $user->roles)) {
        $url = admin_url('users.php');
    }else{
        $url = admin_url('index.php');
    }

    return $url;
}

add_filter('login_redirect', 'dashboard_redirect', 10, 3);  

The user can be passed into your function with a little more argument specificity.