I never really had a case where I couldn't find something again that I would've found through my bookmarks as these are usually not tagged well or there's not enough information in the URL / title of the bookmark to have a big surface area for a fuzzy search.
It took me a while to realize that but I noticed that it's very refreshing to keep less things around and try to hoard them (bookmarks, browser tabs, downloaded movies, shows, music) like I did in the past. After observing it for a while I realized that it never happened that I couldn't find something again or re-download if necessary.