Can an ultrawide monitor replace your dual monitor setup? It depends on what you’re trying to do, but the short answer is “probably.”
Whitson Gordon recommended this very LG monitor as a great budget option in this post for about $300, but today, you’ll only need to pay $200, within about $20 of an all-time low. Not bad for a 29", 2560 x 1080 IPS display with support for HDR10 and FreeSync.