nmtui does not support EAP configuration WPA2 Enterprise
It would be nice to not need to manually edit a config file to connect to EAP or only have nmcli (no GUI tools).
wpa_supplicant supports this using a configuration like this:
network={
ssid="EnterpriseSystem"
key_mgmt=WPA-EAP # Must do manually as of Feb. 2020 with Network Manager
identity="my-username"
password="sup3rs3cr3t"
}