Ziply fiber has 50Gbps service

Their service area is >15x the size of Switzerland.

(16k sq miles vs 250k square miles)

The overbuilding is a very annoying problem though, I agree.

TBF Ziply is very much an outlier. Most urban and suburban places in the US have middling to poor connectivity provided by a monopoly or duopoly that overcharges while engaging in various underhanded tactics.

Weirdly enough some of the most reasonable offerings in the US can be had in the few rural counties that have built out municipal fiber networks alongside the electric grid. Unfortunately that is once again very much the exception rather than the norm.