To begin with, I would advise you to make sure that you have a new version of Windows, because the split-screen feature is available on Windows 10 and later versions, and it works seamlessly on both desktops and laptops. In general, I also set up my screen in this way and it really became easier to work and I don’t have to scroll the pages many times. I set it up using https://wallyhome.com/ where every step is described in detail and even a novice PC user can do it himself.