If you need to hide pages from Google search results, start by adding a...

https://lukasnpyy234.cavandoragh.org/is-it-better-to-noindex-or-redirect-an-outdated-page-a-technical-seo-guide

If you need to hide pages from Google search results, start by adding a "noindex" meta tag to the page header. This tells search engines to drop the URL from their index. For faster results, use the Google Search Console Removals tool