Augmented reality isn’t really a thing yet. But you know what is? Face lenses. Millions of users across Snapchat, Instagram, Zoom, TikTok, and countless other apps are already used to tapping a button and having dog ears suddenly attached to their skull, rainbows fired out of their mouth, or their makeup subtly — or not so subtly — transformed into a new style. Most users don’t think of this as AR or view these features as evidence of some revolutionary new technology. But whether…