Apples and oranges. Among many other things, Docker (and Podman etc) has 1. Images and OverlayFS 2. Networking 3. User namespace mappings 4. Resource manag

Apples and oranges. Among many other things, Docker (and Podman etc) has 1. Images and OverlayFS 2. Networking 3. User namespace mappings 4. Resource management --- If all you want is file system isolation, then docker (and postman, etc) is massive overkill chroot is correct.