Am not sure if you own a foldable, but that comment kind of sounds like you don’t. Inner screen is not a problem and hinges are quite well built. Devices have other issues but inner screen is not one of them. Mine is some 8-9 months old at the moment and there isn’t a single scratch on that inner screen. By now pretty much every phone I had would get at least tiny scratches, regardless of the fact they are made from better material.
Whether it would last 2+ years, I’d say they would by the feeling alone but your guess is as good as mine, however I don’t see rampant complains online of people saying first versions dying on them. Whole hardware is sturdy and feels good as new after almost a year of daily use. I do know Samsung says first inner screen replacement is 10$ or so and they take the hit for most of the price. My device is also insured but I am not sure I need it really.