I mean… evolution can “repurpose” things. So the thing it was before isn’t needed and it’s capacity to do what it did is greatly diminished. Ie we couldn’t claw food or earth really even, so our nails would not qualify as claws as much as they once must have been similar to what rodents have.

I do take your point though, as in “vestigial” referring to an organ or a part of anatomy which hasn’t got a purpose. And nails still serve purposes that claws might as well, like prying open nuts or some such basic stuff.

But if we discard the manipulation abilities we have on our forelimbs and only consider toenails, what then? Would you consider toenails vestigial claws?