In the Overlays mode (very bottom left button) while your courser is not the actual pointer but having selected a designation mode (mining, dumping, leveling), you can not toggle the terrain grid, mining & dumping, and tree harvesting overlay by clicking with the mouse.
resource filters are not affected.
if you don't have a designation mode selected you can change the visibility of terrain grid, mining & dumping, and tree harvesting overlay as intended.