I heard that it is not very well historically accurate and that it wastly overstates the role of drugs in Nazi Reich for the sake of sensationalism
I can push another scripture towards you that states that drug use didn't significantly influence military strategies or outcomes: https://www.rogermoorhouse.com/blitzed-by-norman-ohler-a-his...
Sorry for being pushy, am not a historian so don't take my aural confirmations for granted