The biggest little EMI offender in your home is switching power supply’s and compact florescent lights.
learn to make some sniffer probes to find the obnoxious leaks.
LED bulbs are no charm to the electromagnetic world either.
Somewhat related, imported light dimmers too. I understand the Communist Chinese stuff is such garbage they’re notorious for belching out RFI. Goes along with tons of other imported garbage which lacks proper shielding etc.
LED light bulbs are also offenders.