A. It is true that 5G and smart meters are becomming more popular (I've done readings in the past attached below). Our bodies have somewhat adapted to the 3G and 4G waves; however, those that are more sensitive may still have issues and feel their effects. Some are even having drastic effects to the EMF waves generated with this technology.
Having said that, people are trying to find solutions and minimize these effects to make them more tolerable. Different devices or tools can be implemented and incorporated to deflect the waves and create a "barrier" about the device (with you ideally inside the barrier).