Clearing outdated Google results depends on one factor: do you control the...

https://www.bookmarking-presto.win/clearing-outdated-search-results-comes-down-to-whether-you-own-the-site-if-you

Clearing outdated Google results depends on one factor: do you control the site? If it’s your site, delete the page and ensure it returns a "404 Not Found" status—avoid "soft 404s" where the page looks empty but still signals as active