I don't mean the physical fibre. I mean the network layout. Common layout today is (X)GPON with a splitter with 32 nodes off it. I imagine a 1980s network woul

I don't mean the physical fibre. I mean the network layout. Common layout today is (X)GPON with a splitter with 32 nodes off it. I imagine a 1980s network would be much closer to a DOCSIS style RFoG layout, but with far less node density than cable because of the much better reach of fibre. You'd probably have (tens?) of thousands of homes connected to one segment - primarily for TV. This would have completely collapsed in the 2000s as bandwidth use exploded, and would have required enormous work to split it into smaller higher capacity networks (this is exactly what happened with coax cable internet).