hidden files shown despite setting being unchecked

I’m running LibreElec on a Odroid 2 but I’d already seen this with OSMC on my Raspi 3: despite having “show hidden files” unchecked, the hidden folders

$RECYCLE.BIN
System Volume Information

are visible under Videos when I plug in my external USB3 drive. How come? These folders do not show when I view the HDD in Kodi on Windows.