If I was going to rewire my house, I would go with cat6/7 cable for future needs. We don’t know what bandwidth will be needed in 5 or more years. How about streaming 4K/8k for example.
Fibre has many advantages and some hurdles. Fibre is hard for an end user to terminate, so the end user will buy premade fibre cables which are expensive or the connectors for self termination are expensive. Hardware to use fibre is expensive and I don’t know any dac that features a fibre input.
Benefits to fibre: no noise, less jitter, no/reduced latency, speed.