Moved onto Niri yesterday after having to reinstall my PopOS and it just clicked. Like i3wm did all those years ago.
I can focus for hours on end and spend zero mental energy on resizing a window. I had less of that with i3wm but you had to always readjust after a few windows were tiled to your workspace. That final bit of cognitive overload was removed with Niri.
EDIT: Spec: RTX 3090, Pop OS 24.04 (beta), 4K 43" Monitor,
Niri Installed from cargo build, super easy install, make sure you install xwayland-satellite so that you can run VS Code, Obsidian, Zoom, Blender and other strictly X11 applications