The focus on Windows does not follow the mouse cursor by default in Debian Xfce. But you can change it to your way. I wanted the opened windows to set focus following the mouse pointer so that I don’t have to click with the mouse to set the focus. Just moving the mouse pointer over a window would set focus on it. The procedure’s pretty easy.
- Go to Settings Manager > Window Manager > Focus.
- Select Focus follows mouse.
- That’s it. Additionally, what I did, I set ‘Always on top‘ to the main window I work on.