Gorilla Glass is a special type of glass used to protect the screen of smart devices such as laptops, monitors, smartphones, etc. Currently, it is also widely used to protect smartphone displays.
The Samsung Galaxy M33 comes with a TFT LCD; to protect it, the phone offers Corning gorilla glass 5 protection. It can always protect the phone display. There is no need to use a separate protector glass to protect the display on the phone.