rsync backup to USB flash drive (depending on filesystem)?

[David Chmelik]

Recent years we backup some user (u) data to USB flash drives which
unfortunately still come preformatted FAT32 so apparently can't use some
arguments/flags/switches. If we want these readable on most modern OS, is
it worth reformatting NTFS, and if so, does the below need changing to
remove some arguments/flags/switches or(inherent in '-av') or can NTFS use
everything FAT32 can't?

rsync -av --delete /home/u /ud0

FAT32 apparently has no ownership/permissions but of course on UNIX/GNU/
Linux we do, so backups have errors, so we're thinking of using NTFS (also
for journalling?). In past I used EXT* and maybe FFS/UFS USB flash drives
only to find some computer science (CS) professors unfortunately only
using windows couldn't open those (not that I'm in university anymore) so
also why I'm thinking of NTFS... but what if someone wanted to open that
on apple/mac or android or any popular current-day OS?