transient_example.php

if ( false === ( $customQuery = get_transient( 'projectName_related_products' ) ) ) {
			
            $args = [
                    'post_type' => 'post',
            ];
            
            $customQuery = new WP_Query($args);
            
			set_transient( 'projectName_related_products', $customQuery, 99999 * HOUR_IN_SECONDS );
        
        }
		
		
		add_action('woocommerce_update_product', function () {
			
			$args = [
				'post_type' => 'post',
			];
			
			$customQuery = new WP_Query($args);
			
			set_transient( 'projectName_related_products', $customQuery, 99999 * HOUR_IN_SECONDS );
		    
        });
		
        
        if( $customQuery->have_posts() ) {
            while ($customQuery->have_posts()) {
	            $customQuery->the_post();
	            
	            //your code....
             
            }
        }