prerequisite: installed wsl 2

microsoft's guide: https://learn.microsoft.com/en-us/windows/wsl/install
microsoft's previous guide: https://learn.microsoft.com/en-us/windows/wsl/install-manual

install 7-zip from https://7-zip.org/ to "%ProgramFiles%"\7-zip

download install-gnome.bat, read it and run it in your normal user account

open non-admin cmd prompt
cd /D "%USERPROFILE%"\Downloads
curl.exe -OL https://akik.kapsi.fi/rocky/install-gnome.bat
.\install-gnome.bat

when you get the [rocky@hostname ~]$ prompt, run

passwd
sudo rm -f /etc/profile.d/show_password_notification.sh
start-gnome &

to start the wsl 2 rockylinux-9 instance at a later time:

wsl --distribution rockylinux-9 --exec dbus-launch true & wsl --distribution rockylinux-9 --cd ~