For those like me just looking for the answer to the question. Please follow the walk-through in TomsGuide, the first link below. First, it needs to be disabled for the taskbar. Next turn CoPilot off via a specific group policy. The group policy is named something like "Turn off CoPilot" so make sure you are Enabling the policy to turn on the policy which shuts off CoPilot. Microsoft being intentionally difficult here IMHO...
If gpedit.msc does not launch, it needs to be manually added to the operating system using command prompt as an admin. Super easy, follow the seconds link below to add group policy editor then go back to TomsGuide. There are two separate commands listed in the GPEdit link. Don't try and run all 4 lines at once, it's two separate commands. Turns out Microsoft decided home users don't get gpedit by default. FYI, GPEdit is now part of "Microsoft Management Console".
Took me all of 5 minutes after I found the articles. I don't know if this is for a specific user or for the entire machine. More knowledgeable people on here can figure that out. Hope this helps.
Walk-through for disabling CoPilot in W11:
https://www.tomsguide.com/computing/software/how-disable-copilot-in-windows-11
Walk-through for adding group policy editor back to the operating system:
https://answers.microsoft.com/en-us/windows/forum/all/gpeditmsc-missing/d75b96e0-8bd9-4810-a609-90893cd65342