To get Citrix to work on 2 monitors, follow these steps:
1. Open Citrix Workspace app and select the Desktop Viewer.
2. Click the arrow and choose Window.
3. Drag the Citrix Virtual Desktops screen between the two monitors.
4. Full-screen mode may cause a gap, so adjust accordingly.
In some cases, Citrix may default to using only one monitor, but these steps should help you use 2 monitors effectively.