This issue was resolved by replacing device names with a random identifier. This issue is fixed in iOS 13.1 and iPadOS 13.1, macOS Catalina 10.15, watchOS 6, tvOS 13. An attacker in physical proximity may be able to passively observe device names in AWDL communications.
https://support.apple.com/en-us/HT210634
https://support.apple.com/en-us/HT210607