Hi,
In Scaleout architecture, if you have more than one frontend server, there is no possible way to automatically add one user and it reflects all frontend gateway's user source. So if we can centralize our user source in backup and active Igntion internal Idp, I believe the Ignition Idp can be set up for all frontends. But I don't know how to do that.
I know using external Idp will fix this problem but in some cases, we don't have that option.