About [3]. In Switzerland most of the fiber network is built by Swisscom, a form...

About [3]. In Switzerland most of the fiber network is built by Swisscom, a former telecom monopoly and still 51% state owned company that also owns the old copper network. Other ISPs can use the network but everyone has their own router with an integrated ONT. ONTs as a separate device are pretty much unknown. On XGS-PON only certified ONTs are whitelisted [0] The wholesale price list is public [1] For actuall prices see [2] They differentiate mostly through support, price and additional services like TV. Data caps are basically unheard of (I don't call something like the fiber7 FUP of 600TB a data cap) and CGNAT is, while not uncommon, at most a phone call to disable it.