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?
zfs is fine on a single drive too, and its cross platform, which OP said they wanted (though not which platforms, which is important here). ext4 is junk on windows and nfs doesn’t work well either for windows, which i assume OP wants because they mention NTFS.