Getting rid of outdated Google results boils down to whether you own the site....

https://reportz.io/technology/how-do-i-keep-dead-urls-from-creating-a-bad-user-experience-in-search/

Getting rid of outdated Google results boils down to whether you own the site. If it’s your site, delete the page and ensure it returns a proper 404 error, then use the "Removals" tool in Search Console