Just an update on this re: the Bluetooth.
I had my AirPods paired previously for single use. I don't use them on
the laptop (there is some latency), so I prefer the wired earphones. But
it seems like Bluetooth was aggressively scanning for them. After
removing them from the system, the scanning remained, but reduced
significantly.
So looking at Console again, every so often, Bluetooth is scanning the
network on behalf of the "sharingd" process.
sharingd is a sharing daemon that supports features such as AirDrop,
Handoff, Instant Hotspot, Shared Computers and Remote Disc in Finder.
Still keeping Bluetooth off, however.
Mark.
