I think electromagnetic radiation is the area where I'm most reckless because of smartphone, laptop, WiFi Router... It's hard to avoid. But on the plus side this is probably one of the most well-researched areas with fewest gaps. The only uncertainty for me concerns what amount of electromagnetic radiation is safe but I guess quite a lot.

So there is ionizing radiation, and non-ionizing radiation.

The worst that non-ionizing radiation can do to you, is burn you. Just like all stoves, an induction stove is non-ionizing radiation. So just like all stoves, it can burn you (if you touch the steel pan). Even the heat from a flame is non-ionizing radiation.

Microwave ovens also use non-ionizing radiation -- specifically, they use sub-infrared light -- AKA, radio waves. In your body, there are molecules that due to their shape & constituent ions have a dipole moment (water being the most prevalent example.) The dipole moment causes the molecule to vibrate, i.e. heat up in the presence of an E-M field. This is exactly why sunlight feels warm: it is jostling the dipole-momented molecules in your skin. The only reason microwaves are "scarier" than sunlight is, meat is translucent to radio waves, so microwaves -- despite being less energetic than visible light -- can heat up the inside of you where there are no pain receptors.

Then we have ionizing radiation, like UV, X-ray, Gamma-ray, etc. Ain't nobody cooking with those.

TL;DR don't worry unless you're standing next to an unshielded kilowatt radio transmitter.