Help me understand how an ultrawide is more productive than side-by-side monitors. I see this come up all the time - in reviews online, talking with colleagues (I'm in IT) and friends (many of whom are developers). I have used both setups - at home I have 34" ultrawide and in the office I have dual 24". Both are good, but the point seems to be "more screen real estate is better for productivity" than specifically "an ultrawide is better for productivity".
Price per performance, the multi-monitor setup seems far more effective. I can get dual 24" IPS with docking capability (including charging) for half the cost of an ultrawide with about the same screen real estate. The article agrees, saying the cost needs to come down.
The only advantage of the ultrawide (and this is why I have one at home) over multi-monitors is the immersion for games and entertainment. However, unless you are a game designer or video production specialist (or something similar), this is not work related. The argument I hear is mostly for people using typical business apps - browser, office suite, chat client - or even an IDE.