I’m having difficulty pulling down the notification bar from the top of my Samsung Galaxy S8® / Samsung Galaxy GS8+® phone. Is it because of my InvisibleShield Glass Curve screen protection?

On the  Samsung Galaxy S8 / GS8+, the notification menu is at the very top of the screen—higher than it has been in the past. Whether or not you have screen protection on your phone, start swiping where the speaker is on the phone. This should bring down the notification menu.