Ultrawide monitors have become an enormous trend in PC gaming over the last 3-4 years. In late 2014 when LG launched the first PC monitors with a 21:9 aspect ratio, I indeed was a skeptic. To me, it seemed like such a radical new aspect ratio would be wrought with game incompatibility, and wouldnt offer much of an advantage over two monitor setups for productivity.
And in the beginning, this was mostly the case. In 2014, games didnt even enable the option for 21:9 aspect ratio resolutions, and those that did, generally resulted in distorted image and FOV settings.
However, gamers wanted these ultrawide aspect ratio displays, and the game support soon followed. Now, ultrawide monitors are a staple of every monitor manufacturers product lineup.