Follow the below steps to make google chrome full screen:-
How to Make Google Chrome Full Screen
Step 1. Firstly you have to open the google chrome in your system to activate full-screen mode in google.
Step 2. Now you have to click on the three dots in the upper right corner of chrome window
Step 3. Select the zoom option from the drop-down window to make google chrome full screen.
Step 4. In this way, you can Enable full-screen mode in chrome.
Step 5. Click the F11 key in Windows to return full-screen Chrome’s window to its standard size.
Step 6. On a Mac, run your cursor up to the top of the screen to display the menu bar and accompanying window controls and then click the green circle in the top left corner of the Chrome browser window.