I’m having 2 issues with Wifi:
- Does iCloud Keychain sync Wifi network passwords, or just network names?
- Does iOS 11 or 12 have a new Wi-Fi sharing feature where a iOS device logged into a Wifi-network near another iOS device will be informed that someone else is trying to join the network and given the option of sending them the password directly over-the-air, as it were?
I called Apple support, and the so-called "senior" adviser informed me that with respect to Question 1, only network names are synced via iCloud Keychain, and with respect to Question 2, it's not a feature about which they have any documentation.
Please set me straight!