When you toggle full-screen mode, the tab you were on when you toggled the feature takes up all of your computer screen’s real estate.
This is where Google Chrome’s amazing full-screen mode comes into play. Taking all of those factors into account, the only way for users to be able to direct the entirety of their attention to one single tab without fail is for that tab to be the only thing they see on their screen. If you’re working on a browser such as Google Chrome, focusing on one single tab can be quite a challenge – what, with all the other open tabs in your field of view, each seducing you into switching to them every few minutes, your computer’s foxy taskbar, and everything your computer has to offer in the notifications and calendar/clock area in the bottom right.
Multitasking is well and good when it comes to maximizing productivity, but there come times when the only way for a person to be at the top of their game in the context of productivity is to focus on one single task at a time.