Most people aren't even taking the fastest tier available to them now, let alone offering them even high speeds.
I have domestic broadband connections at two premises, both with Andrews and Arnold. The rural place has FTTP because its too far from the cabinet to meet Scottish Government requirements and the village is too small to be worth another cabinet. So OpenReach gritted their teeth and fibre it is. I pay for 80Mbps and typically get 60 Mbps at my desktop, which is connected over powerline.
The urban place has FTTC, data-only line, costs the same, more-or-less and gives me 76Mbps rock solid at the desktop, using the same powerline system
Both systems work absolutely fine for everything I need to do. In the average month I download about 175GB (0.5Mbps average) of which 70Gb during peak hours (0.78Mbps average).