> That's always existed with Hidden SSID. If you are particularly paranoid you can set it up like that.

It's actually the opposite, a hidden SSID will backfire and hurt your privacy when it comes to phones and laptops.

With a normal network, your phone can passively listen for when it approaches MyHomeNetwork and then connect. If you change that to a 802.11 hidden SSID, then whenever you aren't connected your phone will be constantly emitting a very distinctive mating-call: "Any hidden networks? Hello, if you're MyHomeNetwork, please then let me in." That makes it easy for someone to uniquely identify your phone as it moves around, and it also takes up more battery power with the often-fruitless transmissions.

Both issues could be reduced by restricting it to only auto-seek the SSID based on other clues, like GPS regions or neighbors' public SSIDs, but that usually isn't a feature.

> But unless you insert personally identifiable info in your wifi name there is not really any privacy risk for this data being mapped.

How often do you reset/rename it? Surely it's at least weird that some big companies, via sensors carried by your neighbors, know you moved your apartments from X to Y even when you don't use any of their products.

Some phone-apps will have access to the network name too, but that seems just marginally worse compared to other identifying info they could track and exfiltrate.