Magento 2 add Product Custom options to all enabled products

gistfile1.txt

<?php

use Magento\Framework\App\Bootstrap;

require __DIR__ . '/app/bootstrap.php';
$bootstrap = Bootstrap::create(BP, $_SERVER);

$objectManager = $bootstrap->getObjectManager();
$state = $objectManager->get('\Magento\Framework\App\State');
$state->setAreaCode('adminhtml');

$productCollection = $objectManager->create('Magento\Catalog\Model\ResourceModel\Product\Collection');
$productCollection->addAttributeToFilter('status', \Magento\Catalog\Model\Product\Attribute\Source\Status::STATUS_ENABLED);

foreach ($productCollection as $product) {
    $values = [
        [
            'title' => 'Certificate of Origin',
            'price' => 75,
            'price_type' => "fixed",
            'sku' => "",
            'sort_order' => 1,
            'is_delete' => 0
        ]
    ];

    $options = [
        [
            "sort_order" => 1,
            "title" => "Additional Certificate",
            "price_type" => "fixed",
            "price" => "",
            "type" => "checkbox",
            "values" => $values,
            "is_require" => 0
        ]
    ];

    foreach ($options as $arrayOption) {
        $product->setHasOptions(1);
        $product->getResource()->save($product);

        $option = $objectManager->create('\Magento\Catalog\Model\Product\Option')
            ->setProductId($product->getId())
            ->setStoreId($product->getStoreId())
            ->addData($arrayOption);
        $option->save();

        $product->addOption($option);

        echo $product->getSku();
        echo "---\n";

    }
}