As to the calories, yes calories count, but the fact that it is calorie dense doesn't necessarily mean you should avoid it so much as be aware if you are mixing sources and having excessive meals. I know a lot of people on carnivore diets for inflammatory and diabetic control and the total calorie intake is less of an issue in those cases. Even with a pound of steak and a dozen eggs a day, weight loss is still happening for overweight diabetics on carnivore diets.
Just meat is very sating and impossible for most people to overeat in practice... at least from my own experience and exposure. The relative mono diet also helps with this.
It's too easy to obsess, and I've experienced times where I'll stall when not eating enough more than eating too much when I'm eating clean. I have digestive issues from Trulicity/Ozempic and have a hard time eating enough, and my metabolism is highly dysfunctional... If I eat 1500 calories a day, about my natural hunger level at this point, I won't lose anything, but if I eat closer to 3000-3400/day, I will lose weight. It seems counter-intuitive but it's true.