(my Android device...so does what it wants, first)
Android phone on a nice WIFI 35 feet away has no business reverting to Cell Antenna for a couple seconds, and also even the scanning of several WIFI sources serves no purpose for MY use.
I'm thinking it should routinely just go with the one we own, at the house.
Instead, the (phone screen switch on) routine appears to take approx 3 seconds to take a survey or something, on both media, that is the cellular and the nearby WIFI. Some sort of survey, sniffing around is not serving my purpose anyhow. It feels snoopy and the cellphone does these brief snoops as if by procedure. That's why I consider that brief survey activity to be outside of my personal needs.
How hard would it be for logging that traffic, of others around me, I don't know. But a listing saying 'Karen's WIFI' (from nearby neighbor) is kinda creepy.