My daughter's high school sits in the middle of 5G coverage area. However, the Verizon students cannot even get a LTE signal and the only thing their phones indicate is SOS. This is not due to the building blocking the signal, or issues with the devices given there are several hundred Verizon customers/students in the building.
Conversely, T-Mobile and AT&T students have phenomenal service. The signals from those providers clearly work fine in the building.
Does Verizon send engineers to test signals? Do they even care about the true coverage in an area that supposedly has 5G coverage but they students cannot get any signal even outside the school walls.