https://www.pce-instruments.com/us/measuring-instruments/test-meters/gauss-meter-kat_40056.htm
this is a link to a gaussmeter if you are worried about this stuff. Make some measurements, then when the telcos install 5G, measure again and sue!
If you have a new router it may operate in a similar band already, up to 60Ghz RF is already available at consumer levels, from NetGear, Asus etc.
I plan to build a big faraday cage around my underground bunker, this way I’ll be safe from Major League Baseballs spy satellites too.