It’s not a myth. Elon will not be genuine talking about this because Neuralink and Tesla would fail if people understood the biological harms of non-native EMFs.

I defer to biophysicists like Dr Jack Kruse on the topic of how sensitive our bodies are to foreign electromagnetic signals. He goes into electron-level detail.

https://bengreenfieldlife.com/podcast/lifestyle-podcasts/is-bluetooth-radiation-dangerous/