I have deployed ArcGIS Enterprise 10.8.1 and configured it for high availability. I have a few questions to ensure the deployment is configured correctly as I am trying to use a setup that isn't mentioned in any of the deployment patterns.
I am using a slightly modified version of this deployment pattern:

Machine 1 is running portal (primary), server, data store (primary), and 2 web adapters (portal and server)
Machine 2 is running portal (secondary), server, data store (secondary), and 2 web adapters (portal and server)
The two ArcGIS Server installations have been joined and are operating as one site which is federated with the portal using the load balancer url.
I am not planning to use IWA with my highly available portal, I want to use Active Directory accounts with portal authentication as described here: https://enterprise.arcgis.com/en/portal/10.8/administer/windows/use-your-portal-with-ldap-and-portal-tier-authentication.htm
I have not seen this configuration described in any of the high availability documentation or deployment scenarios, is this supported for highly available deployments? It is working fine now, I just want to confirm that it will not create problems later or expose me to any security risks.