Cleaning up outdated Google results depends entirely on whether you control the...

https://mill-wiki.win/index.php/When_Should_I_Request_Reindexing_in_Search_Console_After_Removing_Text%3F

Cleaning up outdated Google results depends entirely on whether you control the website. If you own the site, delete the content and ensure it returns a proper 404 error code—avoid "soft 404s" where the page still technically exists