OWC Blog – 3.2.22
This is all about drive format and, mainly, why ExFat is not your friend.
The TL: DR? I’m going to suggest you only use ExFat for transferring between computers – not as an active access use. Use HFS+ (macOS Journaled) if you’re on Mac systems; use NTFS if you’re on Window systems. If you’re cross-platform, buy a utility (like MacDrive) that allows you to read the other format for the highest compatibility/data sanity.
Source: Picking the Right Drive Format: ExFat is Not Your Friend