Hello, @Alpha111,
Thank you for your response.
We are delighted to inform you that the functionality for related products comes from the WooCommerce plugin. We kindly ask you to contact WooCommerce support directly for assistance at [WooCommerce Support] (https://wordpress.org/support/plugin/woocommerce/).
Furthermore, if you wish to deepen your understanding of related products, we recommend reading the following detailed article: [Related Products, Upsells, and Cross-sells](https://woocommerce.com/document/related-products-up-sells-and-cross-sells/#section-3).
Should you have any further questions or require additional assistance, please feel free to reach out to us.
Best regards,
The 8Theme Team