In this post we will show you how to split screen your mac apps natively in macOS Catalina, without having to install a third party app.
In macOS Catalina, split screening your views is done via the full-screen button, which is located in the upper-left corner of an application window.
Either hover your pointer over the full-screen button, or click and hold the button.
When the drop down menu appears. Select one of either “Tile Window to Left of Screen” or “Tile Window to Right of Screen”.
The window will then occupy that side of the screen.
To Exit split view, move the pointer to the top of the screen. This will reveal the window buttons. Click the full-screen button, which exits that window from split view.
Any other split screened apps will now switch to full-screen view.