My Linux VM in Hyper-V also boots in 1 second (well, 1.5 seconds actually but that includes networking, docker, samba and various other services): $ system

My Linux VM in Hyper-V also boots in 1 second (well, 1.5 seconds actually but that includes networking, docker, samba and various other services): $ systemd-analyze Startup finished in 76ms (firmware) + 38ms (loader) + 461ms (kernel) + 967ms (userspace) = 1.544s So 1 second by default is impressive, but not really special for those who can already run a VM. Dynamic memory reclamation is turned on by default for any modern Linux distributions running in Hyper-V. Last I checked the performance of \\wsl$ is terrible (certainly not on par with NFS). I can see it might be slightly more ergonomic for casual users though, but certainly not to the point WSL 1 has already been at.