There is a daydream tag that actually pertains to the 2012 screensaver technology. It seems to have been misused in one question Is there a way to increase fonts in google VR/Daydream? which is actually for the VR tech, which probably should have a separate daydream-vr tag.
I also wanted to use this tag for my question, but without 300 rep I can't create it. Hoping someone with tag privs agrees that it is useful and creates one.