As far as I can tell; no one.
You can get 3 metre Thunderbolt 3 cables, but as far as I can find, the longest alternative Thunderbolt 4 cables are 2m long. Anker make a 2m one which is around $50, which makes the Apple one sound like bad value ($80 more for just one additional metre), but making quality high speed copper cables is incredibly difficult. I suspect no one will build a 4m cable using copper connectors, and long Thunderbolt 4 cables will all be fibre-optic based
PS Coating your cables in clove oil does a good job of discouraging pets from chewing on them. It helps if you’re happy for your home to smell of cloves.
