However, when you use a dual monitor setup, it is quite difficult to use a single wallpaper on both of the monitors. The main problem occurs when two monitors have two different resolutions.

so you can replicate the value a dual-monitor setup provides by allowing you to keep work stuff on one side and personal stuff on the other. Even when I'm using this 40-inch ultrawide monitor ...

Most wallpaper sites have some multi-monitor options, but there are a few places that specialize in super wide wallpapers, including Dual Monitor Backgrounds, WallpaperFusion, and subreddits like ...