My understanding is that Virgin have their own infrastructure and everyone else uses OpenReach, is that right?
Nope, at least CF and Hyperoptic from that list have their own networks, although my understanding is that CF have entirely their own network while Hyperoptic still use at least some Openreach infra behind the scenes.
FWIW current fibre cables are thinner than the copper cable going though your neighbour's tree and are fitted with a spring loaded coil of extra cable on the house end - a bit like a retractable dog lead - so I doubt running it through the tree would be an issue.
Doesn't seem sensible to dig up the front garden if there's going to be a bunch of alternatives within a year or two so I'll have to cancel Virgin and stick with a measly 60Mbps for now 😑
Nope, at least CF and Hyperoptic from that list have their own networks, although my understanding is that CF have entirely their own network while Hyperoptic still use at least some Openreach infra behind the scenes.
FWIW current fibre cables are thinner than the copper cable going though your neighbour's tree and are fitted with a spring loaded coil of extra cable on the house end - a bit like a retractable dog lead - so I doubt running it through the tree would be an issue.