The exchange is Sky LLU enabled, so if you call that Sky's version of FTTC then yes. I thought there was a hint of sarcasm in the wording of your question but if there was not, I apologise
So this information will allow you to make a judgement on how likely I am going to have issues, based on who's network my packets start their journey out on?
Generally with the main providers one would add 'fibre' to the brand name to mean that they do not have the adsl offering from the same company. If someone had FTTP at the moment they are likely to spell that out...
I don't get what you are saying with the "Virgin Media Fibre" statement. Maybe I was right about the pedantic bit at the start