It's optimized for minimal splits (let's say 2-3 windows) per view but it makes it effortless to flip between apps. Floating windows is also an option and making any of them full screen is available too.
Imagine tiling a bunch of pieces of paper on your floor and now you want to focus on a few of them at a time. That's basically what a scrolling window manager allows, you can either swipe on a touchpad, hit the arrow keys or use your mouse wheel to cycle between stuff. Of course you can customize these, that's just a reasonable default.
It's so much faster than manually dealing with workspaces IMO.
I'm currently taking a look into both Hyprland's scrolling plugins and if that fails then Niri. I wish Hyprland's official scrolling plugin was not in an alpha state. I want to stick with Hyprland because everything else about it is really nice.
All of this stuff works independent of Omarchy too since it's 100% related to your window manager.
Here's a video demo: https://youtu.be/r0JUm77inIA?t=319
[Note: I'm not the author of the video but I jumped to a timestamp where he's showing Niri's scrolling features]