It's such a myth that 5G can replace optic fibers, afterall 5G itself relies on it, if it requires setting up expensive(controversial) cell towers really really close to homes, why bother making it wireless.

https://arstechnica.com/information-technology/2019/12/5g-as...

>Noting the dense deployment of cell sites that millimeter-wave spectrum requires, he commented: "This means that a wireless company almost needs to become a cable company to make it work."