@danishhaseen From the photos, it looks like you are asking about bird droppings. In my experience bird dropping don't simply slide off the ceramic coated surface. However, it can be cleaned much much easier compared to a non-coated surface. You can clean this off with just a single spray of water and wipe it clean with a cloth. No chemical required.
You specifically asked about glass coating, I have not experienced cleaning bird droppings off a glass coated car yet so I cannot say about that but ceramic coating is a better version of glass coating. By this logic, glass coated should also help in cleaning bird droppings off of the vehicle surface, Maybe not as much as ceramic coating does but still to some extent.