I am also suddenly (started happening the last 10 days or so) experiencing this problem of Address and Menu bars being invisible. When this happens right click context menu within the Windows Explorer displays a blank box. Sometimes but not always right click context menu on desktop also displays a blank box.
Because Windows Recovery did not fix the problem, re-installed drivers, chipset etc etc. Finally re-installed Windows 11 (am using Windows Pro). Did not work. Just to be sure formatted the drive and re-installed Windows, again same problem.
I doubt very much that my system suddenly developed some hardware problem. Not expecting any help at this site!
Steve, your problem sounds exactly like mine. I was beginning to think it was just a quirk with my particular system but now with yours also having the same problem I'm wondering if others are having it without reporting it or what. Sorry you're experiencing the problem but also glad to hear I'm not alone.