this post was submitted on 02 Feb 2026
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Cosmic runs its own window manager called
cosmic-comp, whereas Gnome uses Mutter. The tiling is baked into the Cosmic window manager, whereas you'd need to use an extension to get the same functionality on Gnome.Glad to hear you're liking it, though! While I currently use Gnome with the PaperWM extension, Mutter is frustratingly behind on some current WM improvements (without good reason, IMO).
If you enjoy the tiling aspects, check out similar projects like Niri, as their window management shares some of the same codebase! Lots of neat projects out there, these days.
By “shares some of the same codebae”, I assume that you mean both COSMIC and Niri use the Smithay Wayland support library? Or that both Niri and GNOME use xdg-desktop-portal-gnome?
Smithay, yes
Interesting that you are using PaperWM but recommending Niri.
It's in my plan to switch, actually. The only reason I haven't is because I need to make sure I know how to use certain Pipewire inputs with the window manager. I've seen that it does work, but I need to know how to do it myself before I make the switch.
This is not about GNOME...
I intentionally did not answer their question, because I don't know. What I addressed was their misconception that Cosmic is based upon Gnome.