Disable "Wi-Fi" networks available message
Network Manager doesn't recognize the connections of devices that it doesn't manage. So it makes it look like the computer is unconnected to a network.
Then it says that Wi-Fi networks are available on computers w/ Wi-Fi. The notification has a "Do not show again" button.
Disable notification bubble about Wi-Fi networks.
It's fine that people can connect to Wi-Fi networks, but let's not advertise it upon logging in.