Having had City Fibre dig up the street and bury their purple cables under their purple piping. It now seems Map Group are running fibre cables for OR via the old BT cable runs - has this happened anywhere else?
Yes. Many places, many times. It's an incredible series of coincidences given Openreach don't overbuild.
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YouFibre uncapped via Mikrotik CHR. Faelix via Mikrotik RB5009.