I'm setting up a new hard drive and formatted it as exFAT. I liked the cross platform support and not having to deal with permissions when mounting the device. BUT it doesn't support hardlinks, which I want to use for the *arr apps. Is NTFS the best pick, and I'll just have to live with read only on mac?
Yeah, so in that case I'd just use ext4 or, if you want checksums, btrfs (though this doesn't matter too much as btrfs currently doesn't support raid in any real sense, so it can't actually correct the data, just tell you it's bad).
ZFS can do the checksums with RAID and error correction, but getting that on Linux (without using a specialty distro like TrueNAS Scale) is still a pain.