wp_login_form() passing user ID into URL on redirect?

you can add the user identifier à the redirection URL with this filter

add_filter("login_redirect", function ($redirect_to, $requested_redirect_to, $user) {

    $redirect_to = add_query_arg([
        "user_id" => $user->ID,
    ], $redirect_to);


    return $redirect_to;

}, 10, 3);