Executar a atualização:
https://wslstorestorage.blob.core.windows.net/wslblob/wsl_update_x64.msi
No powershell, executar:
wsl --set-default-version 2
Instalar o alpine ou outra distro.
Links
https://docs.microsoft.com/pt-br/windows/wsl/install-manual
https://github.com/codeedu/wsl2-docker-quickstart