The following SBC SWe in AWS deployment models are supported:
A High-Availability Front-End (HFE) node is no longer required in an AWS HA setup, as the switchover time of the Public IP addresses is reduced to less than 5 seconds. When the HFE node is removed, the setup cost is reduced as the additional HFE node and the resources associated with the HFE node are no longer required for the AWS HA setup to work correctly.
The page Remove the HFE from an AWS HA Setup describes the procedure to remove the HFE node from an AWS HA setup with HFE.