wslg didn't install usefully in Windows 11

Environment

Windows build number: [Version 10.0.22000.132]
Your Distribution version: Ubuntu 20.04.2 LTS
Your WSLg version: Windows subsystem for linux WSLg Preview 1.0.26

Steps to reproduce

WSL logs:

• here is the feedback hub entry
• Attach WSLg logs from /mnt/wslg: sadly the mount point in question does not exist. If it does, I would have a working installation.

Expected behavior

1. start on the dev preview channel
2. upgrade the computer
3. run all windows updates and reboot a lot
4. do wsl --update and wsl --shutdown from powershell
5. do sudo apt update and sudo apt upgrade from Ubuntu
6. Add the following to my [wsl2] section in .wslconfig: guiApplications = true
7. be able to run an X app or see the /mnt/wslg directory

Actual behavior

1. do steps 1-6 above
2. the /mnt/wslg directory doesn't exist
3. running any X apps returns Error: Can't open display: :0

PS C:\Users\deborah> wsl --list -v
  NAME                   STATE           VERSION
* Ubuntu                 Running         2
  docker-desktop-data    Running         2
  docker-desktop         Running         2

504$ ls -al /mnt
total 16
drwxr-xr-x  4 root root 4096 Mar  9 20:14 .
drwxr-xr-x 23 root root 4096 Aug 17 13:22 ..
drwxrwxrwx  2 root root 4096 Mar  9 20:14 c
drwxr-xr-x  2 root root 4096 Mar  9 20:14 wsl  

Start with the detailed-log instructions in CONTRIBUTING.md and the linked Feedback Hub entry, then reproduce the listed Windows 11, WSL, Ubuntu, and .wslconfig steps. Done means the installation creates /mnt/wslg and X applications no longer return "Can't open display: :0".