My wife is the phone talker in our family, and the big time texter to keep up with family/friends from the east coast to the midwest and throughout California.
Whatever, she discusses and/or texts re products or services wise in those areas often shows up as an ad sometimes in minutes.
A couple of months ago we had a new LG dishwasher from Costco and had it delivered and installed by Costco. A friend warned us not to discuss critical things in our kitchen.
A nearby relative bought a different brand from a local big time household retailer and installed at the same time.
If my wife and our relative discuss how their new DWers are doing. The relative gets LG ads/texts, and my wife gets ads re their dwer.
None of our appliances are connected to the Internet........................ I think..................🤔