You are not the only one.

I have an ASUS ProArt Display 27” 5K. And I somewhat regret it.

I love the pixel density. But I don’t love the matte finish. Which is apparently a controversial take. But I really don’t. I like the crisp pop of typography you get with a glossy display. And, for UI design, the matte finish just doesn’t “feel” like the average end-user experience. I am constantly pushing Figma between my laptop display and my monitor to better simulate what a design will look like on an average glossy LCD or OLED display.

I've got that display, too, and quite like it. Matte finish is essential (IMO) if you're annoyed by reflections.