What do WPA2 and WPA3 mean?
The answer
They protect a wifi network. Choose WPA3 or WPA2/WPA3 Transitional. WPA2 Personal (AES) is still appropriate with a strong password.
Both protect wifi traffic between the router and a device that has joined it.
WPA2 Personal (AES) is still appropriate when you cannot use a newer option. Choose a strong wifi password too.
WPA3 is newer and the first choice when your devices support it.
The newer option only works if both the router and the device support it. WPA2/WPA3 Transitional also lets WPA2 devices join the same network.
Avoid settings called WPA/WPA2 mixed mode or TKIP. WEP and open networks are outdated too.