Why is WPA3 going to be using 192-bit encryption and not 256-bit in the security suite?
The articles I'm reading echo J Modi's point. For instance:
WPA3 also contains a 192-bit security suite, aligned with the Commercial National Security Algorithm (CNSA) Suite from the Committee on National Security Systems, to help protect government and other secured networks, the Wi-Fi Alliance said.
Computer scientist Mathy Vanhoef thinks the
feature [that] will strengthen user privacy in open networks through individualized data encryption [may refer to] Opportunistic Wireless Encryption: encryption without authentication. See https://tools.ietf.org/html/rfc8110