It seems the api has changed and the command that one can find online are mostly outdated. How can I change which version of Windows Subsystem for Linux is used?
wsl -l -v
After, upgrading windows to 2004 I was able to use the above command in the Power Shell.
wsl -l -v > NAME STATE VERSION > * Ubuntu-18.04 Running 2
Is that sufficient as a confirmation? The wsl shell's of wsl 1 and 2 seem to look identical.