i use arch btw, and i call them folders (btw)
its kinda pointless making a big deal about what people call it as long as everyone is understood.
the beauty of linux is choice, theres loads of options and distros and software, who cares if you choose to call it a folder or directory?
me at the ripe age of 12 discovering i could type
firefoxand it would open firefoxso uhm i use a window manager now