It is easier to split your  Mac
screen  than to keep two windows open
simultaneously. The  split screen mode  is ideal for viewing data for reports,
keeping chat windows open while doing something else, or playing a video while
multitasking.

By using the  split screen mode on Mac , you can open two applications or browser windows
simultaneously. By doing this, you are able to glance between windows without
having to use your mouse or press Command+Tap.

Read the full blog
here: https://www.soldrit.com/blog/how-to-split-your-screen-on-a-mac-for-better-multitasking/