5G is also fundamentally different in one important way. We are moving a way from fewer high powered towers, to a lot more low powered cells. Yes this existed in 4G, but 5G is taking it to the next level.
What I find particularly troubling: 4G is for me already more than good enough. 5G is really not so well thought out. They require a lot more cells. The exposure is much higher... They cost more (?).
Why are we having this technology?