Source for quality fiber optic displayport cables

The Fibbr brand of cables on Amazon has dwindled recently apparently. The only length available is 65 ft. I’m looking for a reliable brand in the 15-ft range, and I’ll need 8 of them to connect 4 computers to the new KVM switch I just ordered from L1. How does the Orei brand perform?

Any others I should consider?

I’ve also seen conflicting opinions here as to whether both sides of the KVM should be AOC, or only the longer side. In my case I can group the 4 computers fairly close together and, I believe, use 3-ft copper cables from each computer to the KVM, and then fiber optic from the KVM to the monitors. That is, if it is OK to mix copper and FO in the system.

However that approach will require some sort of remote actuation to switch the KVM, as it won’t be close to my desk.

If I put the KVM close to the monitors, it will be right in front of my on the desk, I can push the buttons directly, and the cables from KVM to monitors could be 3-ft copper, but then I would need 8 fiber optic longer cables from the computers to the KVM.

The group of computers will be about 10 feet away from the monitors, as the cable runs.

Any advice as to FO cable brand and/or whether to mix copper and FO cables?