Getting rid of outdated Google results starts with one question: do you control...

https://www.cast-bookmarks.win/when-outdated-search-results-linger-your-approach-depends-on-site-ownership

Getting rid of outdated Google results starts with one question: do you control the site? If it’s your site, fix the content and use the "Refresh Outdated Content" tool to speed up the re-crawl