Linux can read/write to NTFS as well as FAT32 though there are those
that say NTFS writing can still cause file corruption - not seen it
myself but then again you are talking about using this second drive as
a data store so there'll be a lot of writing going on from the Linux
side too. Downside of FAT32 is that maximum file size is 4Gb and on
larger partitions the FAT table can get unwieldy.

So you pays your money and makes your choice really <lol>

As long as the data is backed up regularly then if file corruption
does happen it's not a disaster and can be sorted.