Yes, it is.
I played and finished Doom 2016 on Hurt Me Plenty, but Eternal? That's another story.
The levels are ridiculously long right from the start.
You have to be constantly moving or you're already dead, and even while moving you're getting hit by something you don't even know it's there.
You have to switch weapons all the time because of seriously limited ammo and an endless variety of sub-weapons that the devs absolutely wanted you to use. They're not optional, at all.
Enemy weak points are anything but simple to aim at on console, and if you don't get rid of them asap, you're already dead.
Most encounters are at least 2x longer than in Doom 2016, right from the first level.
Like other people have noticed, Eternal is a game that wants to be played in a certain way. There's very little room for personal strategy, and it's so fast and relentless, it's exhausting.
I dropped it without looking back.