Foldable are just ridiculously over complicated and over equipped with hardware. You don't need double or triple QHD screens, there's no point of a smaller high resolution screen and then one inside but bigger.
A foldable should be a single large square screen facing out. You put a single/dual camera as the "notch" which is also the front/rear camera. All the rest of the space should be there to put a 7000+MAH battery. Rely on an accessory flip case to protect the screens if you must.
Price would be halved from less complications and it would practical.