They’ve had screen breakage problems since about 2-3y ago for some reason. My OG Nova Air has survived about half a dozen short drops without any issue but more recent devices are just spontaneously breaking in people’s bags or sitting on a counter.
I think they’re dealing with some kind of design failure where they haven’t accounted for display stresses in the newer thinner screens but they’ll never, ever, admit to it. That would open them up to replacement liability and drive them out of business.
If you do buy one of their newer devices I strongly encourage you to buy a 2-3y aftermarket warranty with it otherwise it seems like you have a decent chance of just being shafted at random.