On my Azure-affiliated hub using a pure cloud-only room-resource account, the password rotation option in Settings shows a red text field saying password rotation is not supported on this account type. The device account is entered in username@domain format.
Is this expected? Also, do you have any info on when Intune/MEM will support management of the password rotation? (I've fished through the CSP's and existing templates and haven't found an option for it)