Use multiple monitors as one big monitor

So I have multiple monitors to use, I know they can be used in mirror mode where they both essentially display the same thing, or multi monitor mode where they behave like two separate displays side by side.

Now, is there a way to have them act like one big continuous display? For example, can I have two 1920x1080 monitors connected as one big 3840x1080 display and basically be able to have windows spanning both of them?

Unfortunately, googling yields only results about normal multi monitor use.

For Debian 12 I found the solution on this Arch Wiki page: https://wiki.archlinux.org/title/Multihead#Configuration_using_xrandr

I had to create a new monitor consisting of two displays:

$ xrandr --setmonitor Wide auto HDMI-A-0,DisplayPort-1

$ xrandr --listmonitors
Monitors: 1
 0: Wide 3840/477x1080/268+0+0  HDMI-A-0 DisplayPort-1

$ xrandr --version
xrandr program version       1.5.1
Server reports RandR version 1.6