Cheers. I'm using WSL1 now, but am getting too old to join the Insider / Fast rings. Have done my fair share of Windows OS beta testing over the decades, starting with Win95. :)
As we're sharing links, this was a great write up:
https://devblogs.microsoft.com/commandline/announcing-wsl-2/
Can't wait for it to roll out officially with 20H1.