This is stupid. I don't think foldable phones are likely for a long time - foldable screen technology is just way off (sure you can have demos but try folding and unfolding it 10,000 times and see how it holds up). We much get foldable phones with multiple displays but there's no real technical challenge there and still nobody has done it because it's not really what people want.

But aspect ratio is just not even remotely close to being a problem.