ok so I found this in Exultia - the second level. I was looking for secrets, and found this, a Classic DOOM wall texture. The moment you touch it, it rotates and
Doom 2016 Guide: All Secret Classic Doom levels - TheTech52
Doom: A New Vision Of Hell - Game Informer
DOOM – Levels 11, 12 and 13: Secrets and Collectibles - Rooster Teeth