I didn't see this topic on the forum and wanted to post that windows 11 cast wireless display with Intel ARC Control doesn't work.
This is a decision by Intel ARC Control to not support wireless display on windows 11. see https://community.intel.com/t5/Graphics/Intel-Arc-and-Miracast-Wireless-Display-Drivers/m-p/1517700#...
You must temporarily disable Intel ARC to cast.
1. right-click on the Intel ARC Control app in system, and close it
2. open process manager search for Intel arc service and end the process
3. casting should start to work
with Intel ARC Control on, when you try to cast to Roku, Intel ARC Control will open, but not give an option to setup the wireless display
