Maybe it's beacuse you're tilting your iPhone so it gets rotated?
When I'm in landscape mode my safari window opens up in split screen. How do I disable that. been through the settings and I cannot find it.
View attachment 113433
That's not split screen. You have your bookmarks open. Tap the open book icon in the top left. See my pic of circled icon.
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Thank you!! Didn't even think about that. It worked.
I have the same thing in my text messages, can't find how to get out of it