Niri is pretty, but I find sway to be faster. Hotkeys and instant switch is just better (for me). I will continue to experiment, but sway feels more productive currently.
You can disable animations in Niri, which makes switching instantaneous. Since switching from sway to niri (with a minor detour via hyprland), I found that Niri's scrolling tiling matches much more closely how I work with windows.
As a side note, I found that Niri uses less battery for me than both sway and hyprland.
As a side note, I found that Niri uses less battery for me than both sway and hyprland.