Using split-screen on Mac is excellent for productivity and it doesn't require buying, connecting, and finding room for a secondary display.

You can use Samsung's One UI to do split-screen multitasking on a Samsung Galaxy S10. Here's how to use it to display two apps side by side at once.

The other side of the screen will display thumbnails for all your other open windows. Just click the window for the app that you want to view side by side with the first window.

Master the art of multitasking by splitting your screen. We show you how to do it on any device.

Microsoft has started testing a new tab split-screen feature inside its Edge browser. It allows you to compare two tabs side by side.

Hence they do offer a dual-screen solution, but not the ideal side-by-side configuration preferred by most people, particularly those who wear variable focus glasses.