To see if your Windows 10 computer is ready to support WPA3:
netsh wlan show wirelesscapabilities
returns:
Wireless System Capabilities
----------------------------
Number of antennas connected to the 802.11 radio (value not available)
Max number of channels the device can operate on, simultaneously (value not available)
Co-existence Support : Unknown
Wireless Device Capabilities
----------------------------
Interface name: Wi-Fi 2
WDI Version (Windows) : 0.1.1.9
WDI Version (IHV) : 0.1.1.9
Firmware Version : E2.41
Station : Supported
Soft AP : Not supported
Network monitor mode : Not supported
Wi-Fi Direct Device : Supported
Wi-Fi Direct GO : Supported
Wi-Fi Direct Client : Supported
Protected Management Frames : Supported
DOT11k neighbor report : Supported
ANQP Service Information Discovery : Supported
Action Frame : Supported
Diversity Antenna : Supported
IBSS : Not Supported
Promiscuous Mode : Not Supported
P2P Device Discovery : Supported
P2P Service Name Discovery : Supported
P2P Service Info Discovery : Not Supported
P2P Background Discovery : Supported
P2P GO on 5 GHz : Supported
ASP 2.0 Service Name Discovery : Not Supported
ASP 2.0 Service Information Discovery : Not Supported
IP Docking Capable : Not Supported
FIPS : Supported
Instant Connect : Supported
Dx Standby NLO : Supported
Extended Channel Switch Announcement : Supported
Function Level Reset : Supported
Platform Level Reset : Supported
Bus Level Reset : Supported
MAC Randomization : Supported
Fast Transition : Supported
MU-MIMO : Supported
Miracast Sink : Supported
BSS Transition (802.11v) : Supported
IHV Extensibility Module Configured : Supported
SAE Authentication : Supported
WPA3 SUITE-B Authentication : Supported
WPA3 SUITE-B FIPS Mode : Not Supported
OWE Authentication : Supported
FTM as Initiator : Not Supported
MBO Support : Supported
Number of Tx Spatial Streams : 2
Number of Rx Spatial Streams : 2
Number of Concurrent Channels Supported : 0
P2P GO ports count : 1
P2P Clients Port Count : 1
P2P Max Mobile AP Clients : 10
Max ANQP Service Advertisements Supported : 0
Co-existence Support : Wi-Fi performance is maintained
NOTE: That will tell you exactly what your device is currently capable of.