This is the emulated startx script for VcXsrv on WSL2, it will spawn the VcXsrv client and connect to it.

startx

#!/usr/bin/env bash

# get host address
HOST=$(ip address show dev eth0 | awk -F '[ /]+' '/inet / { print $3 }')

# start the server
powershell.exe -Command '& "C:\Program Files\VcXsrv\vcxsrv.exe" -multiwindow -nowgl'

# configure xhost
WSLENV="$WSLENV:DISPLAY"
powershell.exe -Command '& "C:\Program Files\VcXsrv\xhost.exe" '+$HOST