LTT has created true spec cables with the actual spec mentioned on the cables but they can not keep up with demand despite being expensive get sold out as soon as new stock comes in.
They are not TB5 compatible though, and if you are going to drive monitors through it, or connect external GPU, 120Gbit (TB5) is much better than 40Gbit TB4 gives you. If you are willing to pay a bit more, consider TB5 cables from CalDigit, StarTech, CableMatters, or Apple.
They also crackle out of the package, or at least the 5 I got did. Kind of sound like the thin glow sticks a bit.
By chance, has anyone tested Cable Matters' cables?
I just bought a couple of their Thunderbolt™ 5 cables. They seem like a reputable company that would make their cables true-to-spec. Thanks in advance!
I managed to get a few and so far am impressed. They are definitely on the chunky side but that probably comes with the durability
I have a few of these cables, pretty decent although I think the USB-C ports are a bit too thin? They feel lose in multiple of my devices