We've had our first iPad for a few weeks now, an iPad 9.7" 2018. My wife is the main user at the moment, and she's forever getting a split screen when browsing the internet using Apple's Safari browser, and doesn't know how she's doing it and, more importantly, neither she nor I can get out of it without powering down and rebooting.
I've checked the internet, including Apple's own site, and the standard instruction for disabling the feature is go to Settings > General > Multitasking and switch off 'Allow multiple apps'. I've checked, and this feature is already disabled on our iPad and, according to various web sites, is supposed to also disable the associated split screen function. But it doesn't! And from what I've seen on the Apple web site, I'm not alone with this problem unanswered.
Can anyone here explain in simple terms how to disable this split-screen function, or how to get back to one screen please?