When it comes to RF radiation, distance is your friend. Intensity decreases as the square of the distance. The miniscule RF from 5G satellites is tiny and hard to receive even with a big dish antenna on the ground. I guarantee you are already getting more than 5G coming down from the sky from hundreds of satellites on differing frequencies. But it is so weak as to be almost not noticeable among the background noise radiation that comes in from the sun, also.
No, the problem with 5G service is the nearby, in-neighborhood base stations that are serving hundreds of clients in the area with high intensity signals that can be measured on a meter and DO have know deleterious effects on the human body. Remember, distance is your friend in weakening the signal. Now… who wants to hold a 5G phone to their head… at ‘zero distance’ from your brain?