Cleaning up outdated Google results depends entirely on whether you control the...

https://www.stall-bookmarks.win/cleaning-up-old-google-search-results-comes-down-to-one-question-do-you

Cleaning up outdated Google results depends entirely on whether you control the website.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 status—avoid "soft 404s" where the page looks empty but still signals as live