The NLnet Foundation’s NGI0 Commons Fund supported an effort to add WPA3 support to OpenBSD, and the work’s payed off.
All drivers which support PMF can use WPA3, which are: iwm, iwx, and qwx. So far, I have tested this patch on iwx AX200 only. I will roll out this patch to more of my devices now. Help with testing is welcome.
↫ Stefan Sperling
There are both userland and kernel changes involved.
Only the second implementation of WPA3 will be supported, which requires some explanation:
WPA3 has a complicated history. There are two versions of WPA3. The initially standardized version suffered from side-channel leaks found by Mathy Vanhoef and dubbed “Dragonblood“. A revised and fixed version has been standardized and is mandatory in the 6 GHz band as of Wifi 6e (11ax) and mandatory on all bands as of Wifi 7 (11be).
↫ Stefan Sperling
Obviously, WPA3 is a very welcome addition to OpenBSD.

“There are two versions of WPA3”
Well they should have called second version WPA3.1. USB has 3.1 and 3.2….