If you need to hide pages from search results, start by adding a "noindex" tag...

https://instaquoteapp.com/how-to-remove-a-page-from-google-when-you-cant-edit-the-cms-easily/

If you need to hide pages from search results, start by adding a "noindex" tag to the page header. This tells Google to drop the content from its index while keeping the URL active for visitors