Pretty sure I’ve seen a version of this cable that had a solid tab that bent in the middle. I have no idea what the brand/name is, and just spent way too long looking for it. It wasn’t metal, but sounds like a plastic version of what you’re talking about. I remember really liking them.

Edit: I think this is it. https://linkup.one/linkup-snagless-rj45-cat6-stp-connectors-...