Clearing outdated Google results comes down to one question: do you own the...

https://wiki-aero.win/index.php/How_Do_I_Check_If_a_URL_is_Returning_a_Real_404_or_a_Fake_One%3F

Clearing outdated Google results comes down to one question: do you own the site? If you control the URL, delete the page and ensure it returns a proper 404 status. Then, use the "Refresh Outdated Content" tool to force a recrawl