PowerShell SDK NuGet packages only have the 'System.Management.Automation.dll' as the reference assembly. This make it impossible to access any types from other powershell built-in assemblies like the utility.dll, management.dll and etc.
In my use case, I need Microsoft.PowerShell.Commands.JsonObject to convert JSON to Hashtable in my application. But the type cannot be found because there is no such a reference assembly in the PowerShell SDK NuGet packages.
For example, both "microsoft.powershell.sdk 6.1.0" and "microsoft.powershell.commands.utility 6.1.0" have "System.Management.Automation.dll" only as the reference assembly.