Perhaps ironically, the opposite door design (one where it’s not clear whether to push or pull) is thusly called a Norman Door [1]. The term is sometimes applied more generically beyond doors.
I’m guessing the vox office featured door has that bar because a flat metal plate wouldn’t seem right applied to glass? Going without the plate the glass would get dirty.
[1]: https://99percentinvisible.org/article/norman-doors-dont-kno...