They provided underlying connectivity to the premises at my prior built-to-rent apartment building in zone 2. The building had its own routers, Ethernet and WiFi infrastructure, and the management of everything was contracted out to an IT consultancy.

200 Mbps to each apartment was offered so I assume they had fibre and not DOCSIS.

I imagine the issue in zone 1 is having to tear up the roads to get cable installed. In new builds you have to do that anyway, so it's good business to get in on the action.