The reality is that hyprland is not a desktop environment and, even with a few dozen extra packages installed, it doesn't cover even a quarter of the use cases something like KDE does.
For many people that's fine, but you're comparing apples and oranges.
The fact they are different is the point, and my preference is leaning towards the Hyprland/Omarchy approach of starting from an empty base that you script and stitch different features together (from a wider community of authors) to build my preferred DE instead of relying on a big release drops from a single vendor to provide most of a DE's features.
There's going to be room in Linux Desktops for multiple DE's, and everyone's going to have their own preference, mine's just leaning towards the Hyprland ecosystem.
For many people that's fine, but you're comparing apples and oranges.