apt install openfortivpn

/etc/openfortivpn/myconnection.conf

  host = 1.2.3.4
  port = 10443
  username = test
  password = pass
  trusted-cert = 4114afe52e931c7f50984567ffc390f529ccd668f01b35eff311abc0d052234a
  persistent = 0

systemctl enable openfortivpn@myconnection --now

dnf install NetworkManager-fortisslvpn
nmcli connection add connection.id ecopl con-name Ecopl type VPN vpn-type fortisslvpn