Hi, It took me a while to understand that Wayland was the source of my problem so I share my experience so that others can be quicker to solve this issue. I moved to F40 and Plasma came only with Wayland. Then, everything seemed OK apart that my Windows VM running in VirtualBox did not capture the mouse (quite annoying!). I run VirtualBox 7.0.18-1.fc40 from rpmfusion-free-updates. I tried all options for the mouse (PS/2 mouse, USB tablet, multi-touch USB tablet and USB MT TouchScreen and TouchPad) but nothing worked. The VirtualBox menu above the VM was also not accessible. After one week of research, I found this post: https://askubuntu.com/questions/1512787/ubuntu-22-04-2-virtualbox-7-0-18-... and installed plasma-workspace-x11. I now run X11 Plasma and VirtualBox works fine. Thanks, F