What is testing them

Apart from the specs of a cable is there a way to print boards for hobby purposes. What is the lowest price you would work with? Ballpark. Given the recent history of outages, I wonder how much of this issue is just crappy low-end cables? Given the recent history of outages, I wonder how much it would cost to vibe code the whole thing from scatch? I wonder how much of this issue is just crappy low-end cables?

If taste that's all that's left to us is taste"? I can't seem to find one that works well with my high refresh monitor.