The appropriate course of action is to avoid using the new Windows App and to escalate a critical issue with Microsoft, clearly stating that the application is not yet suitable for enterprise use.
At this time, the Windows App is not enterprise-ready.
It lacks essential functionality, including:
- The ability to add individual PCs
- The ability to integrate app feeds into the Start Menu
Until these capabilities are implemented, I would strongly recommend continuing with:
- The legacy Remote Desktop app for connecting to individual PCs
- The MSI-based Remote Desktop client for app feed integration in the Start Menu
While both applications share a similar name, this combination remains the only reliable and functional solution for enterprise environments today.