27" 4K OLED Is it exist?

Hey Reddit community,

I'm in the market for a new gaming monitor primarily for gaming purposes. I have my heart set on a 27-inch display, but I'm facing a dilemma. I can't seem to find any monitors that meet my requirements of both 27" size and 4K resolution with a refresh rate of at least 144Hz. Given this, I'm considering settling for a 1440p resolution instead.

However, before making the leap, I'm curious about the significant differences between 4K and 1440p resolutions in gaming. Will I notice a substantial disparity in visual quality and overall gaming experience between these resolutions? Additionally, considering the absence of a 27" 4K 144Hz OLED monitor, am I making the right choice by opting for 1440p, or should I wait for advancements in monitor technology?

Furthermore, I'm intrigued by the apparent absence of 27" 4K OLED monitors in the market. Can anyone shed light on why there seems to be a lack of options in this specific category?

I appreciate any insights or recommendations you can provide to help me make an informed decision. Thanks in advance!