Hi Pierre,
Yes, all three of your examples are generally consistent with the intended use of Windows 11 IoT Enterprise LTSC, assuming the industrial mini-PC is deployed as a dedicated-purpose device rather than a general office PC.
Displaying KPI dashboards or web-based operational information is a common IoT scenario.
Installing local software to monitor or control industrial equipment (such as SCADA, OPC UA clients, MES, or machine monitoring applications) is one of the primary use cases for Windows IoT Enterprise.
Installing endpoint protection or Unified Endpoint Management (UEM) software, such as Microsoft Defender, Intune, Workspace ONE, or similar products, is also supported and commonly recommended.
The key licensing concept is that the device should have a fixed business purpose, for example, serving as an HMI, industrial controller, monitoring station, or edge device not as a general-purpose employee workstation used for everyday productivity applications like Office, email, or unrestricted web browsing.
If the device remains dedicated to its industrial role, your described use cases align well with Windows 11 IoT Enterprise LTSC.