There's some jank involved depending on which combo of x/wayland, window manager, and compositor you're using, but if you can manage to get virtual monitors working on an ultrawide it's great.
A lot of recent models also support "picture by picture" mode, allowing you to connect two separate inputs to the monitor and avoid doing anything in software.
A lot of recent models also support "picture by picture" mode, allowing you to connect two separate inputs to the monitor and avoid doing anything in software.