It’s hard to describe, but somehow the picture seems more “dull”, or less bright (independent of the actual brightness of the monitor), or more toned down. The colors don’t pop as much."

A useful post. Whilst I've not yet had the luxury of owning a 6k or 8k monitor his comment about matte and glossy screens is very useful (also I'm more likely to trust his opinion than many others because his discerning experience is backed by the fact that he's actually using an 8k monitor—and that takes money and commitment).

Over the years I've made many comparisons between matte and glossy screens and I have to agree with him for the same reasons. Despite being more susceptible to reflections, glossy screens always seem brighter and somehow sharper than matte ones of the same resolution and brightness. I've never investigated the reason in depth but I suspect the matte finish disperses the light from the screen and the net visual effect is a 'rounding' of transients resulting in lower contrast somewhat like offset printing which never looks as sharp as letterpress (where the ink dries thicker and looks blacker at the edges of the imprinting, this increases visual contrast even though the resolution may not be much different).