I tried switching to Linux on my main PC (cause I'm bored and I have an extra SSD to waste).
Like the video shows, I can't seem to get my left vertical monitor to properly configure on this OS.
It's completely broken. I can't interact with anything on main monitor once I apply the settings as shown in the video.
The only way it works is if I keep my left monitor in horizontal position.
Google didn't help and apparently it seems to be a common problem.
It's on me for choosing a broken distro but I kinda like it otherwise. I'd rather find a fix the screen problem.
It's not Endeavour's fault (or Arch), if you're new to Linux, and you're running Nvidia, you're probably on X11. You can check this by running nvidia-settings in the terminal. You can see if you're running an X server (I think you're using Xfce, which is the default DE for Endeavour iirc). If that is the case, then you're on X11. In nvidia-settings, you can then configure the monitors, it's a bit fiddly, but I'm running (on X11 with Nvidia) two monitors with a left vertical monitor, at different refresh rates even, and it works.
Also, make sure you have the Nvidia drivers, and not nouveau.
I tried Endeavour on i3 exclusively earlier and I was able to set up the monitor correctly by editing the config with vim. I think the problem was when I reinstalled it using xfce, the drivers I automatically got from
nvidia-inst
Didn't work right so I had to find an alternative source.
Now everything functions perfectly.