$objectManager = MagentoFrameworkAppObjectManager::getInstance();
$cart = $objectManager->get('MagentoCheckoutModelCart');

// retrieve quote items collection
$itemsCollection = $cart->getQuote()->getItemsCollection();

// get array of all items what can be display directly
$itemsVisible = $cart->getQuote()->getAllVisibleItems();

// retrieve quote items array
$items = $cart->getQuote()->getAllItems();

foreach($items as $item) {// product id
    $it[] = $item->getProductId();
}
if (in_array(483, $it)){
  //What logic to make here?
}