I looked up UDF, it looks similar to exFAT in that they are designed to be used with disks/flash storage.
See the same reason why I didn’t opt for exFAT
Correct. exfat is an extension of fat32 to support more than 4GB files. It is a non-journaled file system. Journaled file systems include ext4, xfs, ntfs, btrfs, zfs, jfs and more.
Furthermore, the support to converting NTFS to UDF Isn’t as developed as btrfs.