My primary monitor is the Samsung 57" 8Kx2K 240Hz ultrawide. That's the same amount of bandwidth, running over DisplayPort 2. It mostly works!
With an ultra wide you lose the screen concept for managing area and it gets awful because you lose grouping windows on different screens, picking per-monitor workspaces, moving windows across screens.
Either monitors need to present themselves as multiple screens, or window managers need to come up with virtual screens to regain the much needed screen abstraction.
Although for sim racing I've been thinking about getting a single ultra wide and high refresh rate monitor, but I'd probably go for a dedicated setup with a seat, monitor and speakers. It gets pricey, but cheaper than crashing IRL.
On the flip side I would love to get rid of physically managing three individual pieces of hardware that wasn't made to work together as one setup.