Support system files APFS for HDD disk partitions?

[hackintosh1984]

I have question. Is support system files APFS for HDD disk partitions? I have now partition in HFS+ with my data (not is boot macOS), disk is schemat GPT GUID. I will have conversion or format partition HFS+ to APFS.

 

[freesby]

APFS can be used with HDD
It is not necessary to use or convert to APFS with HDD nor SSD. Conversion is optional.