wow ... that's alarming! feature of APFS?
I use a Fusion drive with APFS:
$ diskutil list
/dev/disk0 (internal, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *240.1 GB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_APFS Container disk2 239.8 GB disk0s2
/dev/disk1 (internal, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *2.0 TB disk1
1: EFI EFI 209.7 MB disk1s1
2: Apple_APFS Container disk2 2.0 TB disk1s2
/dev/disk2 (synthesized):
#: TYPE NAME SIZE IDENTIFIER
0: APFS Container Scheme - +2.2 TB disk2
Physical Stores disk0s2, disk1s2
1: APFS Volume Pop - Data 1.1 TB disk2s1
2: APFS Volume Preboot 81.9 MB disk2s2
3: APFS Volume Recovery 528.9 MB disk2s3
4: APFS Volume VM 1.1 MB disk2s4
5: APFS Volume Pop 10.6 GB disk2s5