I'm not asking which filesystem is 'better', I just want to maximize the spectrum of systems I can use my USB drive with, without having to install drivers or update the OS.I'm not interested in performance/security/fault tolerance or other such features, just portability.
Also, the answer there suggests filesystems which typically require installing third-party drivers or have other issues.
So, in this day and age, and for the OSes I mentioned (perhaps even others) - which filesystem should I choose? My current best guess is NTFS, since I know the Linux support is decent (or better) and for Windows it's native. You start with the basics and can then unlock different tools and upgrades by. In the olden days I would probably use FAT32, which I remember to be quite widely supported - but that has a 4GB file limit. The gameplay in Learn to Fly 3 is largely similar to that in the prequel games. I'm formatting (a single partition on) my USB drive, for read-write use on multiple computers - at the very least Windows (XP and up), Mac OS (not sure which versions) and Linux (distributions which are no more than, say, 4 years old).