All of what you say is kind of sort of true in the sense that, if you are in a room with lots of off-axis light hitting your screen and darkness behind you and you yourself are not brightly lit, then the glossy screen is better. And the glossy screen is certainly sharper.

But if there’s a window or something bright behind you, the specular reflection from the glossy and generally not anti reflective coated screen can be so bright and so full of high frequency details that it almost completely obscures the image.

And since I might be trying to work involving text in a cafe as opposed to doing detailed artistic work in a studio, I would much prefer the matte surface.