https://learn.microsoft.com/en-us/dotnet/api/system.management.automation.psmoduleinfo.moduletype?view=powershellsdk-7.4.0
PSModuleInfo.ModuleType Property (System.Management.Automation) | Microsoft Learn
True if the module was compiled (i.e. a .DLL) instead of being in PowerShell script...
property systemmanagementautomationmicrosoftlearn