Checking the FileStore for a FAT32 USB volume gave different results on the principal OSes:

Linux:
jshell> Path p = Path.of("/media/bpb/KINGSTON")
p ==> /media/bpb/KINGSTON

jshell> Files.getFileStore(p).type()
$2 ==> "vfat"

jshell> Files.getFileStore(p).supportsFileAttributeView("posix")
$3 ==> false

macOS:
jshell> Path p = Path.of("/Volumes/KINGSTON")
p ==> /Volumes/KINGSTON

jshell> Files.getFileStore(p).type()
$2 ==> "msdos"

jshell> Files.getFileStore(p).supportsFileAttributeView("posix")
$3 ==> true

Windows:
jshell> Path p = Path.of("D:\\work")
p ==> D:\work

jshell> Files.getFileStore(p).type()
$6 ==> "FAT32"

jshell> Files.getFileStore(p).supportsFileAttributeView("posix")
$7 ==> false

In particular, on macOS the volume is indicated as supporting POSIX attributes which is false.