Cleaning up outdated Google results depends entirely on one thing: whether you...

https://www.sierrabookmarking.win/to-clear-outdated-results-from-google-first-check-if-you-control-the-site-if

Cleaning up outdated Google results depends entirely on one thing: whether you control the website. If you own the site, delete the content and ensure it returns a proper 404 status—avoid "soft" 404s, which confuse Google