When you have two windows opened on the Mac OS screen then select the first window and drag it to the one side of the screen which will place it on that side.Now go to the second window and perform the same option, but here select option 2 if you have selected option 3 for the other window and vice versa, and In this way, you will be able to split a screen on Mac easily in less than a minute.From the above options, you will either have to select option 2 or option 3 as per your preference as to where you want the present window to be placed.When you click on it, it will give you three options to.From the three different buttons, click on the third option which is a green button with expand icons on it.Select one of the windows from the both and then you will find three icons on the top left corner of the window, which will be in three different colors as well.First open a couple of windows on the screen, they can be windows from the same browser or some other apps as well.Note that the window can be the same browser, app, or anything you would like to split in two. Starters wise you would need a window that is already opened and another window to split-screen as well. So, that someone like you and me can be more productive while working on different things.
Also do not worry because MAC is an overpowered device which with its sleek design also brings the basic features to split the screen into two windows as well.