Google Search Console is updating the remove outdated content tool which allows site owners to request removal of URLs they don’t own.
Not to be confused with Search Console’s remove content tool, the remove outdated content tool is designed for entirely different use cases.
The remove content tool is designed for site owners to quickly remove their own pages from search results.
Whereas the remove outdated content tool is used to request deindexing of pages on other websites.
Anyone can send a request for outdated content to be removed from search results if, for example, the SERP shows content which is no longer present on a page.