I wasn't surprised to learn that when Linus Tech Tips released those new usb-c cables, that they all sold out almost instantly. They put their entire reputation on the line to claim (and label) the exact capabilities of their usb cables. Isn't that all we really want?
Twisted pair is good but it only gets your losses so low at these speeds. Keep in mind that USB cables have a very small budget for signal loss, and at 40Gbps they're carrying frequencies 25x higher than 10gig ethernet.
Yeah I don't see any problems with their stuff. It ain't exactly cheap, but a large part of that is their work in making sure you aren't just getting some random 2 dollar trash.
