Quickly locate the pointer
If you have trouble seeing where the mouse pointer is on your screen, you can make it so that simply pressing the Ctrl key will locate your pointer. Once this is set up, pressing Ctrl will cause an animation to appear briefly at the location of your pointer.
Click the icon at the very right of the menu bar and select System Settings.
Open Mouse and Touchpad and select the Mouse tab.
Select Show position of pointer when the Control key is pressed.
Your Ctrl keys will now locate the pointer when pressed.