I don't know. I don't know. “Not all links are created equal” is a known concept within SEO-world in relation to links. For example, there is a great difference between an incoming link that appears in an editorial text and that has a natural purpose and context with the rest of the content, than a link that appears in a footer or a side banner.
Google’s algorithms understand well whether a link has been purchased or whether it has a natural and organic origin (editorial links). These are the latter links that search engines consider to be a quality indicator on good pages to which they will send their users. Links that can be purchased are not such an indicator and are of little importance for organic ranking today.