IPad Pro M4 scroll bar is always on and no option to disable it

What scroll bar?

Where are you seeing this scroll bar exactly?

Please explain clearly what you are seeing and where.

Do note the black line a the bottom of the screen, is not a scroll bar, and yes, it will be visible always, its the indication of where you can swipe up to close the current app.

Your issue is unclear.

Consider posting a screenshot - as this will help contributors understand precisely what you see. With a better understanding of the problem, appropriate advice or guidance can be provided.

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