How to find the mouse pointer in macOS 10.15 Catalina

This feature is on by default but to disable or re-enable it:

1. Select the Apple icon  in the top left corner of the screen.
2. Select System Preferences from the menu.
   
3. On the System Preferences window, select the Accessibility icon.
   
4. On the Accessibility screen, select Display in the left column.
   
5. In the right column, select the Cursor tab.
6. Tick or untick the checkbox for Shake mouse pointer to locate.
   
7. When you are finished, click the Close (red) button in the top left corner of the System Preferences window.

Note: If this does not work it could be because someone else manages your computer settings (an IT department or administrator). If this is the case, you will need to contact them to access these settings or for further help.