I'm picturing Google Street View cars driving around with a box of Pixels in the back, connecting to open WiFi and trying sites and that's why Google can now narrow down your location from what SSIDs are available.
https://www.theguardian.com/technology/2020/feb/03/berlin-ar...
Also, I would've sworn that happened circa 2015 and not 2020. The passing of time for the last few years has such a muddled feeling.