There may be other displays that debut DisplayPort 2.1a support, but how many manufacturers highlight it other than MSI — and as long as the company shouts it out, we can also highlight the model that. As others mentioned here, this is a 4K/240Hz QD-OLED, and the high resolution/refresh rate, high bit-depth combo could use the extra bandwidth of the new standard.
MSI has announced the deluge of monitors we're used to seeing at CES, but some strike me as remarkable. Like the me-too 27-inch 500Hz QD-OLED (MPG 272QR QD-OLED X50), as well as a 24-inch, 1080p/600Hz model (MPG 242R X60N) that uses a Rapid TN panel.
However, it's not all about gaming: a highlight is a 24-inch USB-C portable monitor. I don't really think of 24 inches as portable, but I'm not six-feet-plus tall either.