Not quite true. Openreach (BT) is regulated and required to let anyone offer service over their network.
Any other provider that lays their own fibre is free to offer only their own ISP service. I don't have access to FTTP via OpenReach, but can get it from one other provider (CommunityFibre).
If another fibre provider ever becomes dominant enough they might well also end up regulated more tightly, but that's not the case for the time being
Any other provider that lays their own fibre is free to offer only their own ISP service. I don't have access to FTTP via OpenReach, but can get it from one other provider (CommunityFibre).
If another fibre provider ever becomes dominant enough they might well also end up regulated more tightly, but that's not the case for the time being