Summary: This post discusses the privacy harms and risks of Google’s Related Website Sets feature. The research indicates that the feature reverses some privacy benefits of deprecating third-party cookies, and Google’s justification for introducing this feature is found to be untrue for many users. The study points out the risks RWS poses to Chrome users and highlights that the feature exists to benefit advertisers at the expense of user privacy. Additionally, a user study revealed that users cannot accurately determine if two sites are related, which undermines the premise of RWS. Most browsers have rejected RWS, deeming it harmful to user privacy.
https://brave.com/blog/related-website-sets/