Not denying any part of what you said, just adding that Sun light is the exact same “thing” with a very wide frequency range. Sure, we can’t know whether any given frequency won’t have some adverse effect, I’m only mentioning it because I believe based on the widespread use of RF for decades now, as well as the pretty basic extension of a very natural energy “medium” to the less-energy-per-photon direction should generally hint us towards believing it is safe, and there is no reason to over-sweat it, if someone is prone to it. Of course more studies are always welcome.