# Know the id of the username in the original distro that was exported
wsl -d Ubuntu-20.04 -u kartz -e id -u
# Outputs 1000

# Knowing the id of the username in the distro that was created by importing the tar image
wsl -d Ubuntu-20 -u kartz -e id -u
# Outputs 1000

# I would want to use this distroname and id, to set this user as the default login profile of WSL.
# I set this up in Windows Registry with the line snippet below:
Get-ItemProperty Registry::HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Lxss\*\ DistributionName | Where-Object -Property DistributionName -eq Ubuntu-20 | Set-ItemProperty -Name DefaultUid -Value 1000