Add the ability to insert a widget in the product description for example the link to a page or other product.
You can add links in the product description in Magento 2 using the WYSIWYG editor:
Besides that, you can add other products to the current product by using "Related Products" and "Upsell Products" as you can see in the images below:
I refer also to a link to a page. If I insert a static link it doesn't automatically change if I modify url but I have to edit 1 or more link.