This feature is designed to allow users to multitask more effectively.
Along with this, you’ve got the option to open two of them in Safari.
This will bring you to full-screen mode.
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How to kill the split-screen feature on iPad in Safari using the divider?
you could also use this method to make one of the windows smaller for convenience.
And that way you dont have to enable full screen mode.
How to merge all the windows to close a split screen?
You will then be able to switch between them individually.
Why dont many people use split screen on iPad in Safari?
However, this feature is not widely used of many people for many reasons.
Thus in Safari, its not an urgent need for most.
Also, some users may prefer full-screen mode to reduce distractions and improve concentration.
Using split screen mode on small iPad screens can also be problematic.