Expect WSL to be scuttled in the future due to low adoption rates. It is an obsolete non-starterwhose developers dislike GNU/Linux and whose target audience is Microsoft fans, who also promote it the most (repossession tactics).
Summary: Bribed media and media with Microsoft's de facto moles in it is bombarding us with baseless hype about WSL, a 'distro' almost nobody uses; expect all that PR money to be going down the drain because GNU/Linux users are smart enough to install real distros and run a proper virtual machine, not Microsoft's controlled (EEE style) blobs from the "Store" (DRM)
Backups are imperative, more so in an age of uncertainty, unpredictable weather, and worsening standards (quality of products going down while prices go up)
Expect WSL to be scuttled in the future due to low adoption rates. It is an obsolete non-starter whose developers dislike GNU/Linux and whose target audience is Microsoft fans, who also promote it the most (repossession tactics).