My router is older than that and I don’t have any smart appliances. If one of them dies and I have to get a new one of something, it could communicate but I don’t have a smart meter, either, so maybe no info. can be communicated from my house yet.
If you have a smart meter, the power company can cut it off or let it run for certain hours and cut it off - do anything they want with your power and control any smart appliance plugged into that power source.
WE ARE LIVING IN THE BOOK/FILM 1984.
Smart meters can be electonically jammed with readily available devices if they are “plug-in” appliances; not so for air conditioners and furnaces.