When legacy content resurfaces, it often creates a messy user experience and...

https://stateofseo.com/should-i-301-redirect-old-urls-or-leave-a-404-the-reality-of-content-decay/

When legacy content resurfaces, it often creates a messy user experience and hurts your site's search authority. We’ll show you how search engine caching can inadvertently keep deleted pages live long after you’ve sunset them