Simply, you expect Open > Save to persist your file format. In the use case they target Save > Open persist what you were editing. Things like Live Text, Smar

Simply, you expect Open > Save to persist your file format. In the use case they target Save > Open persist what you were editing. Things like Live Text, Smart Objects, alpha layers (for many file formats), etc will stay around. It's a common approach I've seen in other image editors (including Photoshop), 3d tools, and I imagine text editors do this, too.