Xdev.zip is also a folder within neolamia.com, like listento.site.
I was working on my website today and I wanted to get something done to make it easier.  
I might use this folder for ideas.  I could put my ideas away for later.
I plan on using the X Window System, installed from the package xubuntu-desktop on Ubuntu.

The X Window System is unlike Windows 10 or 11.  It runs on Linux.  Although, Linux can have different operating systems: different distributions -- that's the key term.  A distribution can have packages relevant to that setup.
Ubuntu also uses Wayland, in Ubuntu 24.04.  You have to install xubuntu-desktop, as one way of getting the X Window system.  I glanced at an article on the X Window system.  What I noticed as a possibility of why it might not be used is the lack of a complete glx.c.  I looked into that to develop an OpenGL application using an X protocol, but the document is incomplete and unofficial.
What's nice about X11 is that you can easily manipulate the windows.  xrandr allows you to resize the windows.  Its a command line script.  xdotool allows you to have mouse and keyboard input from a script.

I don't want to use Wayland and X11, kind of like I don't want to use Windows 10/11 and Ubuntu 24.04.  I havent' looked into Wayland.  It's also possible to install XFCE without the xubuntu-desktop package.
Once you have Xfce installed, you can select it.  You'll also get another installation option: lightdm.  When the package is installed, you can switch to that.  It's more lightweight, and perhaps suited for X11.