It still is a duplicate listing and thus I ca not approve it.
The link is only one check and doesn't work as validation if not using the actual link. Additionally there's platforms which often offer multiple links for the same product (due to referrers, location specific sites, etc).
The posting guidelines state to not rely just on the link check.
So what other possibilities do I have to look up for products that already have been listed?
Steemhunt has a search functionality. Just click/tap the 🔎 icon and try with name, with spaces if compound noun, and if a generic name with many results also with additional keyword.