Not sure how new you're thinking, but I use an Ultra-widescreen monitor with Linux. It is about 3 years old. I use on Ubuntu 20.04 on my laptop via USB-C to a docking station. I also use it with my RPi 4 running Ubuntu 20.04 via HDMI.

I'd imagine most modern graphics cards that have drivers for Linux would have no issue with the ultra-widescreen.
Ted
On Apr 11 2022, at 2:25 pm, Harold Hartley via PLUG-discuss <plug-discuss@lists.phxlinux.org> wrote:
> I am wondering if anyone has tried those new very wide screen monitors with Linux.
> I am thinking about one of those monitors if they work with Linux. With all the new drivers and technology being put into the kernel and I thought I would ask if anyone got one running under Linux.
>
> --
> Harold Hartley
> 17632 N. 5th place
> Phoenix, AZ 85022
> wheelie207@ownmail.net
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