I just switched over to it from Ubuntu. So far the nice thing is that it gives you a fully decked out hyprland setup without any of the hassle and pretty good UX.
The problem I've always had with trying out a tiling window manager like hyprland is you're going to spend a very long time trying to get everything just right. With Omarchy I get a really nice hyprland setup right out of the box.
So, one config file? Why would you use a distribution for that?
Github is awash with people's dotfiles including fully featured DEs built on top of things like Hyprland and Noctalia, and they don't require you to use a mess of a distro to use them.