>That scratch was caused by a bump into metal while she was carrying it by hand
Not to defend samsung, because foldable phones are a flimsy bad idea, but it's to be expected that bumps that wouldn't damage other phones (including phones that Samsung makes like the galaxy series) might damage the folders : the folders are made with a plastic screen, and on the recent models, a very thin, fragile layer of glass underneath the plastic. If you buy one, you really should have the expectation that it is going to fail at the slightest mishandling. You can even feel the fold when you touch the area, it doesn't take a major shock to cause damage there.
> I wouldn't be surprised if the flash chips might be wearing out and take longer to read/write to.
This is what happened to the Nexus 7 tablets, I owned one and the experience, which was great at first, became terrible over time.
Smart TVs are a mistake, unfortunately most (maybe all current productions) are smart TVs nowadays. TVs are something that can last a long while - I kept my old dumb TV for 10 years before the backlight became too dark for my liking -, smart components on the other hand.. plus, it's not like it's a huge inconvenience or extra expense to add something like a chromecast or fire tv to get literally the same experience the smart components provide, except that this time, if the stick dies, you don't have to replace the whole tv.
Not to defend samsung, because foldable phones are a flimsy bad idea, but it's to be expected that bumps that wouldn't damage other phones (including phones that Samsung makes like the galaxy series) might damage the folders : the folders are made with a plastic screen, and on the recent models, a very thin, fragile layer of glass underneath the plastic. If you buy one, you really should have the expectation that it is going to fail at the slightest mishandling. You can even feel the fold when you touch the area, it doesn't take a major shock to cause damage there.