What exactly is your problem? What DE you use, how do you change these settings? Share some basic info about your system
Over years I had different setups and never had any problem with monitor setup and never used terminal for it. On KDE it just works. On Hyprland also. I suppose same for any other DE/WM. So I would say Linux support multi monitor configurations very well (or even better than any other system if you want some fancy rotation setup)