I'm trying to redirect a specified user to a specified URL if that user tries to access WordPress admin except if it is a WooCommerce order post. I have tried many ideas in functions.php but none work. In these two ideas below, the user is redirected to the homepage regardless.

Idea 1

add_action('admin_init', 'redirect_admin_user_except_orders');
function redirect_admin_user_except_orders() {
    $user = wp_get_current_user();
    if( $user && isset($user->user_email) && 'info@example.com' == $user->user_email ) {
        global $post_type;
    if( is_admin() && 'shop_order' !== $post_type ){ 
        wp_redirect( '/', 301 ); 
        exit;
        }
    }
}

Idea 2

add_action('admin_init', 'redirect_admin_user_except_orders');
function redirect_admin_user_except_orders() {
    $user = wp_get_current_user();
    if( $user && isset($user->user_email) && 'info@example.com' == $user->user_email ) {
    if ( is_admin() && ! is_singular('shop_order') ) { 
            wp_redirect( '/', 301 ); 
            exit;
        }
    }
}