Fiber has 1 or 2 and is VERY rugged in comparison…you can literally tie a knot in a fiber cable and it’ll still work.

Emm, not with glass fibers. My friend uses it between router and switch, and the one of the fiber breaks. So, traffic can be sent to router but nothing the other way around. He said he didn’t even touch or put significant stress on the cable. Yet, it breaks in a weird way, and hard to troubleshot without proper equipment.