Looks like CF will be dead last here, Virgin were laying ducting and preparing to install cabinets before OR had finished my neighbourhood.
Its a shame as I would have gotten Zen with them but now presumably wont be able to change for 2 years.
Not that 900/100 is slow mind you, but symmetrical would make remote backups a lot more practical.
I wont be getting Virgin purely as I don't like how they convert to COAX outside the property and part of my plan is to cut down the number of paths for lightening to get in, not to add a new one. When my modem got fried years ago, it didn't hit the phone line, it was only near it.
That said, backup fibre itself is somewhat unappealing compared to how cheap 5G backup costs. So its kinda more likely I would migrate Zen over to CF then see if I can get Broadband Essentials on the OR fibre, as that's the only thing cheaper than Three 5G.