External driver formatting on Mac

I have a new 16TB LaCie drive that a freelancer is working on. It's formatted as EXFAT. We did this so that it could be used as read/write on both Mac and PC. They had another drive go down and think it was because the drive was formatted as EXFAT.

I haven't found out what kind of Mac they're using yet, but it's a "few years old," and I'm getting the sense it's not ancient, but not a top of the line one either.

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Has anyone had any issues with EXFAT formatted drives on a Mac?