I was initially a skeptic of the cost of Fibre-To-The-Premises, but in hindsight for New Zealand (≈Oregon) I think a national rollout of fibre was very effective[3][4].
AFAIK fibre is more resilient to catastrophes (like earthquakes[1][2] in Christchurch or California), and having a high speed residential fibre network definitely helped during Covid.
I am uncertain what you mean by “efficient”. Perhaps link to something that backs up your opinion?