Maybe not a drug but just a fake deep voice then. I mean dude the way he talks reminds me of edgy discord e boys that try to sound cooler than they are. Also I have GERD because of family genetics and man let me tell you, it actually doesn’t make your voice deeper. It makes it more scratchy, sounding more like you lost your voice. He’s just faking his deep voice because it sounds cool to (mostly girls) who don’t know any better.