Not all games handle 32:9 gaming equally, however. Most games produce a fisheye effect that strains the picture on the far left and right, making objects appear much closer than they actually are.

This is a late answer, but not many games will “support” a 32:9 resolution (5120×1440). I say this with experience, as I own the monitor you’re referring to (Samsung Odyssey G9). This is a late answer, but not many games will “support” a 32:9 resolution (5120×1440).

1.85:1 – One of two standard ratios for digital cinema projection. It is very similar to 16:9, but slightly wider. In practice, 1.85:1 movies may be shot and framed for 16:9, and delivered in 16:9 for TV, DVD and so on, but cropped very slightly at the top and bottom . . . Read more

Many recent theatrical releases distributed on DVD and labeled as "widescreen" retain this very wide aspect ratio. Because the image of these movies is wider than a widescreen TV, your home theater places black bars on the top and bottom of the screen.

Standard DCI 2K native resolution is 2,048 x 1,080 pixels.

3440×1440 is considered to be 2K. 4K resolution starts at 3840×2160. That said, for games that support 3440×1440 the end results are amazing. Since it is an ultra wide monitor you see more of what is to the left and right of even a monitor with 4K resolution.

1:314:24LG29WK600 Ultrawide for Media Consumption | Netflix, YouTubeYouTube

The bookmarklet solution Add this bookmarklet to your favorites. … Play any movie from Netflix. Click the bookmarklet. Click Shift to increase the size of the video and Ctrl to reduce it. Dec 27, 2017

1:494:24LG29WK600 Ultrawide for Media Consumption | Netflix, YouTubeYouTube

1.78:1 There are three main 4K resolution standards: UHD-1, or ultra-high-definition television (UHDTV), is the 4K standard for television and computer monitors. Resolution of 3840 ? 2160 (16:9, or approximately a 1.78:1 aspect ratio); UHD-1 is used in consumer television and other media, e.g. video games.