Réduire son volume WSL2 (car il ne fait que grossir sans jamais rendre l'espace à Windows)

wsl --shutdown
diskpart

open window Diskpart

select vdisk file="C:\WSL-Distros\…\ext4.vhdx"
C:\Users\fanch\AppData\Local\Packages\TheDebianProject.DebianGNULinux_76v4gfsz19hv4\LocalState\ext4.vhdx
attach vdisk readonly
compact vdisk
detach vdisk
exit

Open issue: WSL 2 should automatically release disk space back to the host OS · Issue #4699 · microsoft/WSL
https://github.com/microsoft/WSL/issues/4699#issuecomment-627133168