How can one get rid of the split screen function on my iPad?

Unlike iPadOS14 and earlier versions, multi-tasking (including split-screen and slide-over views) cannot now be disabled from settings. Multi-tasking has received a significant overhaul with iPadOS15/16, both simplifying its use and introducing new controls. 

Key to accessing and controlling (or avoiding) multi-tasking is the small “three-dot” button that is found at the top-centre edge of the visible App windows. 

Information and guidance for using multi-tasking can be found in this support page:

Use multitasking on your iPad - Apple Support

The iPad User Guide is a rich source of frequently overlooked information about your iPad and iPadOS. The Guide is available both online using a web browser (such as Safari), or as an Apple Books download:

iPad User Guide - Apple Support

https://books.apple.com/book/id1567104892

The Tips App, installed by default on all new models of iPad, provides a brief introduction - and leads you to the User Guide. In case you missed it, here is a link to the Tips App:

https://apps.apple.com/gb/app/tips/id1069509450

Apple also has a huge YouTube Channel - containing videos and feature guidance:

https://www.youtube.com/user/Apple

Apple do invite submission of constructive comments and feature requests via its Product Feedback portal. If you would like to see change or revised features in a future iPadOS version, this would be the most appropriate channel through which to make a request:

Feedback - iPad - Apple

Bernieearl Said:

"How can one get rid of the split screen function on my iPad?"

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Getting Out of Split Screen:

1. Go Here: Close Split Screen or a Floating App on your iPad - Apple Support
2. Scroll to: How to close or get out of split screen on your iPad

As it Reads:

1. Touch the controller in the middle of the vertical bar between the two apps.
2. Drag the controller off the screen in the direction of the app that you want to close.

Try the following:

Settings > General > Multitasking & Dock > Allow Multiple Apps > disabled

Note: this setting disappeared, starting with iPadOS 14 and later.

more generally: log your feedback with Apple:

Product Feedback - Apple

…as they may not see your feedback posted here.

Please answer the question. The question is how do I block split screens? I don’t care if it’s pretty I don’t care about the reasons it’s there. How do I stop it you think it’s on par with works like those from Leonardo da Vinci. But the question wasn’t about Leonardo da Vinci the question is, how do I block split screens? Can you please answer that question. If you can’t block it in Safari, just say so and I’ll use another browser

Walter_from_MD wrote:

Please answer the question. The question is how do I block split screens? I don’t care if it’s pretty I don’t care about the reasons it’s there. How do I stop it you think it’s on par with works like those from Leonardo da Vinci. But the question wasn’t about Leonardo da Vinci the question is, how do I block split screens? Can you please answer that question. If you can’t block it in Safari, just say so and I’ll use another browser

There is no mechanism for that.

Log your feedback with Apple.