The app prompted me to try the Hide Menu Icons. I just wasted 15 min giving it a try, enjoyed it (!), and then discovered there's a known bug. I'm on an M1 Mac running Sonoma 14.
Hello! We've just released Parallels Toolbox 6.6.2 where the issue is supposed to get fixed: https://kb.parallels.com/123955. Kindly update Parallels Toolbox to the latest build and let us know if the issue still remains. If it does, kindly collect a fresh technical report https://kb.parallels.com/124107 and share its ID with us, please.