I noticed that 21.02 release will have WPA3 support built-in by default (which I'm aware of this change when testing snapshot builds in February 2021).
However, based on trying snapshot builds on different hardwares, I realized that not all routers support WPA3, so It would be best to add WPA3 support field in ToH (suggesting with values of Yes, No, Unknown).
For instance, Netgear EX3700 (which looks like a pretty old wi-fi extender) do support WPA3, and Linksys WRT 1200ac also supports (despite this OpenWRT form hinted lack of support of WPA3), while Raspberry Pi 4 B can't (wi-fi can turn on, but WPA3-supported client can't connect to that network)
Edit: for those who wants to talk about WPA3 support on Linksys WRT series, please visit this newly-created thread:
Thank you for all the enthusiasts.