You'll have to enable display scaling to get more of your screen's real estate in macOS. You can change the screen resolution or scaling option in macOS from System Preferences.
Steps to change display scaling in macOS:
Open System Preferences
from the Apple menu at the top left of the screen.
The default resolution is supposedly set here.
Click on the Scaled
radio button and choose your preferred scaled resolution.
Below is a comparison between the default resolution and when selecting More Space
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