Respectfully, I find the 70% figure for access to a gigabit line extremely hard to believe.

When I lived in central London (tube zone 2), all that was available at my address was a wet-noodle quality 20 Mbps DSL connection. No BT FTTP, no Virgin, no Hyperoptic, no G.Network. This was in early 2022.

I now live in Switzerland and have a 25 Gbps FTTP connection, paying about 30% more than I paid in London for the DSL line.

It's a completely different world connectivity-wise.