You’re new so you may not know of backlinks, in particular a class of backlinks known as unlinked mentions. Backlinks is a native plugin (nothing to install, just turn it on).
Once enabled, you’ll find them in a left side panel.
You can also see Unlinked mentions which are text strings in files that match the title of the file you are viewing. You can click a button to link that text to the file you are currently viewing.