I just got this one a few days ago so it's kinda weird I've seen it mentioned or posted about multiple times since. Guerrilla marketing?

Anyway, it's definitely better than having nothing, and tests resistance as well. I tossed a couple low value/duplicate/high resistance cables because I've got too many just lying around causing clutter. Also helped 'confirm' my good (e.g. TB4+) cables that weren't labeled clearly are indeed good cables - granted, this is only as dependable as the marker chip the manufacturer added.

If you just want to know what wires sets you have in your USB cables you can get the Gikfun "USB Cable Tester - Fast Check for Type-C/Lightning/RJ45 | Tests Charging Data Transfer | Continuity Check Quick Cable Sorting"

It's only $14.

It even offers test pads you can use to test the cable with a much more expensive multimeter.