Yes, but more of it is in black/death metal than prog metal. "Progressive metal" can't both be a defined genre and live up to its namesake. A band performing the same tricks as everyone else isn't progressing anything.
>>126987976>metal isn't seriousMaybe that's true if you're immersed in circus prog, pirate singalong metal, and the deep end of high fantasy EUPM cheese. Metal doesn't have to be strictly simple, realistic, and about society to be serious, it just needs to be convinced of itself and able to convince you as well.