Sadly, I have 5G at my home, and it is unsettling. I suggest you check your home as well. You will need a 5G phone to use (borrow one from a guest) and then do a speed test, as seen in the video.
Edit: There are several types of 5G. The 5G you see on your home router is not the super dangerous 5G. Although home WiFi is dangerous. It is about the types of waves they emit.