Why would you split a window and how?

Splitting a window allows you to view and interact with multiple applications or documents side by side, enhancing productivity and multitasking. This can be done by dragging the window to the edge of the screen until it snaps into place, or by using keyboard shortcuts like "Windows + Left/Right Arrow" on a PC or "Control + Command + F" on a Mac. It helps streamline workflows by reducing the need to switch between tabs or applications.