Not always, no. Apple has tended to put its biggest and best features into the "Pro" models in a given year, but recently it's been offering the same camera and processor features in both its Pro and Pro Max models. What this means is that you get a trade-off between screen size and battery capacity, which is larger on the Pro Max models, against hand comfort and a lower price point for the regular Pro models.
There's no one absolute "right" fit for everyone either, and that's where smaller models like the iPhone SE 2022 or iPhone 13 Mini come into play.