No, Correca, that's well the ping ! .... else he should have it online and offline.
Moreover, I'm nearly sure Steam FPS is green .... while AC ping online is rather yellow-orange.
I also always have it .... and I'm nearly sure the fact of hiding all apps doesn't work to take it off.
I suspect that .... or you can't turn it off ...or maybe it's possible to hide it modifying a setting in one or other config file ... but where and which one in this case !???? ...I don't know.