https://www.theguardian.com/technology/2022/dec/01/nbn-losses-to-reach-25bn-by-2040-report-finds

Adoption of ‘multi-technology mix’ model and decision to preference regions in rollout cited as major factors in reported losses

NBN Co will still have $25bn in accumulated losses by 2040 due in part to the Coalition government’s decision to steer away from fibre optic cable, the Productivity Commission has said.