5G is an umbrella for different types and technologies, and I believe that’s the confusion part of what the artice mentioned and the reader views. 5G has three main categories (technically two but separating the 2nd one to further explain it), 5G NSA (non stand alone), where the 5G RAN uses an existing 4G LTE core, 5G SA (stand alone), as the name implies, is stand alone from previous generations and has its own arch…
5G mmWave is best used in dense - ie. not so often in North America - urban areas. I's going to work great in busy metro stations, shopping streets/malls, concerts. Not in suburbia.
But my nearest antenna is a block away with pretty good sight lines. If I move my radio even 6ft in the wrong direction my speeds go through the floor. I think the 5G hype was excessive for a technology that only works in very specific circumstances and it’s led to some disappointment.