Open Enhanced / OWE (Opportunistic Wireless Encryption)

Open Enhanced は、文字通りオープンモードの拡張版で、OWE (Opportunistic Wireless Encryption)/RFC-8110 を用いて、パスワードを入力しないでも暗号キーを生成し、フレームを暗号化することが可能です。

Android 10 より、対応しているようです。
WPA3 and Wi-Fi Enhanced Open  |  Android Open Source Project

Apple 製品では未対応のようです。
https://discussions.apple.com/thread/251332529

[English Version]

"Open Enhanced" is literally enhanced open mode. This mode is based on OWE (Opportunistic Wireless Encryption)/RFC-8110. Customer does not need to input id/password but encryption key are generated by automatically, then frames are encrypted.

Android 10 supports Open Enhanced.
WPA3 and Wi-Fi Enhanced Open  |  Android Open Source Project

Apple devide does not support so far.
https://discussions.apple.com/thread/251332529