Wifi band and Bluetooth band are almost the same (WIFI2.4GHZ, Bluetooth 2.45GHZ).
We say that using Bluetooth headset to make a phone call has the lowest radiation, which can be ignored, using remote control device is medium, and using mobile phone directly is the strongest.
Therefore, there is no need to consider the radiation of wireless WIFI. However, as a hot spot, the notebook has less transmitting power.
Of course, it is recommended not to use a wireless router with too much power indoors as a hot spot, after all, it will increase certain radiation.