Edición de otros volúmenes

No tengo ni idea de lo que hizo el anterior propietario del MacBook Pro, pero aquí está mi disco:

Ya lo tengo con Mojava y creo que ha pasado en la actualización del SO. Algo así como una reparación errónea de un tipo de sistema de archivos diferente. Ahora tengo AFPS.

diskutil apfs list :

APFS Container (1 found)
|
+-- Container disk1 9EEBD262-1A13-4769-BE71-F470AC0F2735
    ====================================================
    APFS Container Reference:     disk1
    Size (Capacity Ceiling):      499412676608 B (499.4 GB)
    Capacity In Use By Volumes:   492989251584 B (493.0 GB) (98.7% used)
    Capacity Not Allocated:       6423425024 B (6.4 GB) (1.3% free)
    |
    +-< Physical Store disk0s2 0DC53FB9-A4E9-4F73-B2CD-50B1C7032D5D
    |   -----------------------------------------------------------
    |   APFS Physical Store Disk:   disk0s2
    |   Size:                       499412676608 B (499.4 GB)
    |
    +-> Volume disk1s1 542CAA9A-0C5D-4E15-9F67-82444DBCA0B6
    |   ---------------------------------------------------
    |   APFS Volume Disk (Role):   disk1s1 (No specific role)
    |   Name:                      Mac OS (Case-insensitive)
    |   Mount Point:               /
    |   Capacity Consumed:         33422069760 B (33.4 GB)
    |   FileVault:                 No
    |
    +-> Volume disk1s2 F27CF301-8024-4040-B505-B2BF2B83A0A8
    |   ---------------------------------------------------
    |   APFS Volume Disk (Role):   disk1s2 (Preboot)
    |   Name:                      Preboot (Case-insensitive)
    |   Mount Point:               Not Mounted
    |   Capacity Consumed:         67284992 B (67.3 MB)
    |   FileVault:                 No
    |
    +-> Volume disk1s3 3F5C027A-5660-4CA0-90D3-7B77A15A0278
    |   ---------------------------------------------------
    |   APFS Volume Disk (Role):   disk1s3 (Recovery)
    |   Name:                      Recovery (Case-insensitive)
    |   Mount Point:               Not Mounted
    |   Capacity Consumed:         512462848 B (512.5 MB)
    |   FileVault:                 No
    |
    +-> Volume disk1s4 45752D3C-B9C4-4FE9-9D23-5B9126B02CAB
        ---------------------------------------------------
        APFS Volume Disk (Role):   disk1s4 (VM)
        Name:                      VM (Case-insensitive)
        Mount Point:               /Volumes/VM
        Capacity Consumed:         1074536448 B (1.1 GB)
        FileVault:                 No

Y aquí hay otra:

lista diskutil

APFS Container (1 found)
|
+-- Container disk1 9EEBD262-1A13-4769-BE71-F470AC0F2735
    ====================================================
    APFS Container Reference:     disk1
    Size (Capacity Ceiling):      499412676608 B (499.4 GB)
    Capacity In Use By Volumes:   493658509312 B (493.7 GB) (98.8% used)
    Capacity Not Allocated:       5754167296 B (5.8 GB) (1.2% free)
    |
    +-< Physical Store disk0s2 0DC53FB9-A4E9-4F73-B2CD-50B1C7032D5D
    |   -----------------------------------------------------------
    |   APFS Physical Store Disk:   disk0s2
    |   Size:                       499412676608 B (499.4 GB)
    |
    +-> Volume disk1s1 542CAA9A-0C5D-4E15-9F67-82444DBCA0B6
    |   ---------------------------------------------------
    |   APFS Volume Disk (Role):   disk1s1 (No specific role)
    |   Name:                      Mac OS (Case-insensitive)
    |   Mount Point:               /
    |   Capacity Consumed:         34091319296 B (34.1 GB)
    |   FileVault:                 No
    |
    +-> Volume disk1s2 F27CF301-8024-4040-B505-B2BF2B83A0A8
    |   ---------------------------------------------------
    |   APFS Volume Disk (Role):   disk1s2 (Preboot)
    |   Name:                      Preboot (Case-insensitive)
    |   Mount Point:               Not Mounted
    |   Capacity Consumed:         67284992 B (67.3 MB)
    |   FileVault:                 No
    |
    +-> Volume disk1s3 3F5C027A-5660-4CA0-90D3-7B77A15A0278
    |   ---------------------------------------------------
    |   APFS Volume Disk (Role):   disk1s3 (Recovery)
    |   Name:                      Recovery (Case-insensitive)
    |   Mount Point:               /Volumes/Recovery
    |   Capacity Consumed:         512462848 B (512.5 MB)
    |   FileVault:                 No
    |
    +-> Volume disk1s4 45752D3C-B9C4-4FE9-9D23-5B9126B02CAB
        ---------------------------------------------------
        APFS Volume Disk (Role):   disk1s4 (VM)
        Name:                      VM (Case-insensitive)
        Mount Point:               /Volumes/VM
        Capacity Consumed:         1074536448 B (1.1 GB)
        FileVault:                 No

He probado diferentes herramientas y he encontrado información sobre la gran cantidad de datos que se han eliminado del disco. Más que el propio tamaño del disco. Algo así como 700Gb de 500Gb SSD.

Intentaré hacer un downgrade de Mojave a High Sierra para cambiar el AFPS a algo diferente y luego wapear todos los datos. Voy a compartir mi experiencia si nadie no me para ahora)