The full width mode is a problem on Apple devices because of the edge design 
It covers part of the messages. I guess its the viewport-fit=cover that is the isssue.
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This is not an intended use mode, so there is nothing to fix here.
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I think this mode is often used because the new iPhones is so wide in portrait mode and is viewport-fit=cover really nesasary here? Without that Meta data part it would support those new iPhones in landscape.
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I don’t think I’ve ever used discourse in landscape like this. I prefer:
To:
And I really don’t want to rotate my device just to reply.
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When held landscape orientation, is there anything beneath the bezel that can’t be accessed short of changing orientation? If so, is it worth the trade off sacrificing some gutter space?
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This has been fixed by @pmusaraj in https://github.com/discourse/discourse/commit/fec6411fbfa6235342f2a34629d3aed966333041 
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