disable multitaksing

Unlike iPadOS14 and earlier versions, multi-tasking cannot now be disabled from settings. Multi-tasking has received a significant overhaul, both simplifying its use and introducing new controls.

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

More information about using multi-tasking can be found in this support page:

Use multitasking on your iPad - Apple Support

The iPad User Guide is also a rich source of information about using iPad and its many features. 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

While it is not possible to disable the User Interface elements of multitasking, you don’t have to use them. Unless you are unintentionally accessing multitasking views via the three-dot button, at top-centre of the screen, you shouldn’t encounter any difficulties.

Can outline the circumstances in which you have difficulties? With benefit of greater understanding of your specific issues, it may be possible to offer more targeted guidance.

Otherwise, Apple invite submission of comments and feature requests via its Product Feedback portal. For iPad and iPadOS:

Feedback - iPad - Apple

Submitting your feedback is a useful step.

Can you outline the circumstances in which you have difficulties? With benefit of greater understanding of your specific issues, I may be able to provide advice or guidance that may ameliorate your immediate difficulties.