Type in the Windows file explorer :
- For Docker Engine v20.10.16:
\\wsl$\docker-desktop-data\data\docker\volumes
- For Docker Engine v19.03:
\\wsl$\docker-desktop-data\version-pack-data\community\docker\volumes\
You will have one directory per volume.
After installed Docker Desktop, we will have a Linux at the end of the Explorer's sidebar with 2 folders inside
Linux\docker-desktop
Linux\docker-desktop-data
Just go to Linux\docker-desktop-data\version-pack-data\community\docker\volumes