This
This did little to dispel the idea that foldable displays are a solution looking for a problem
I suppose if your already-ludicrously-oversized phablet still isn't big enough for you, one that folds out to twice the size might be just what you need; it would be big enough to hide your face behind if you're feeling embarrassed. But it seems like pure gimmickery (gimmickry?) at this point, I have yet to see a compelling use-case for such a device. Of course, seeing one up close in a well-lit room to figure out its actual capabilities and limitations might help with that...