System Center Service Manager and ADFS/AAD

HI

I'm trying to find out for sure if SCSM can support authentication via ADFS or AAD i.e. modern authentication. I have a situation where SM is installed in a specific forest However there are no ADDS level trusts between this forest and any of the subsidiary forests.  The customer now wants to grant access into SM for users from the other forest.

 

The individual forests are being symched into a central AAD tenant and also have ADFS servers installed in them for other apps. The environment is currently SCSM 2019 but customer is open to an upgrade. 

 

My other idea was to spin up an Azure AD DS instance amd migrate the SM environment to their. But that might be a non starter as well depending on how what the customer might be automating.. 

 

Any one got any ideas or options?