I’d rather have no outer screen, partially so that when I laid the device flat on a table to write on, I don’t have a screen pressed up against it.It has two benefits: No exposed edge, and the outer screen can be a robust hardened glass screen instead of the soft screen required for the foldable panel. In the long run, it might also have the benefit that one third of the OLED screen hasn't degraded more than the other two thirds.