I've never even heard of "Viotek" before. Is that one of the South Korean knockoff brands like on Monoprice? You risk playing the game of dead pixels where return shipping becomes more expensive than the monitor is worth, or more time-consuming even if you're lucky enough for them to handle that. Googled...
https://www.techspot.com/review/1667-viotek-gaming-monitor/
Yeah, they are one of these low-margin Korean brands that is reselling one of the two major Korean manufacturer displays in their own packaging (in this case a Samsung). At least they have US-based customer service. One worries that they may be more likely to be selling reject displays Samsung dumped off on them with several dead pixels.
Dell's Alienware is among the top half dozen gaming display merchants in the world (BenQ, Asus, Acer, LG, Samsung, Dell), and this unit uses a panel manufactured by LG. It currently enjoys being named the #1 Utlrawide Gaming Monitor by
Monitor Nerds, and is a few hundred dollars cheaper than the
top G-Sync Ultrawide unit named by 144Hz Monitors.
Rtings, my favorite reviewer by format, is slowly building their monitor review section. The only 32"+ size monitor that nets a better "Gaming" score from them so far is the LG 32GK850G (which runs
$625 on Amazon), but also isn't an Ultrawide.
https://www.rtings.com/monitor/reviews/best/by-usage/gaming
The major difference to price can be chalked to the fact the Viotek isn't a G-Sync display, and it isn't IPS. Notice the Freesync brother variant of the LG I just mentioned above is only $396:
Otherwise that Viotek looks like a great deal, but this isn't apples to apples.