Since I run both Docker and Plex Media Server, atomic spins aren’t really a good option for me. The way they interact with certain system files is pretty much incompatible with an immutable distro. The number of workarounds that I would have to employ in order to get it all to work would be a gigantic headache and would pretty much undo any advantage I would gain.
Also, I really don’t like cosmic desktop. I used to use PopOS, and I was very excited for it, but when they switched to it, it just really wasn’t ready, and I still don’t think it’s ready yet. Plus it offers no framework for extensions or plug-ins yet. I far prefer GNOME, and GNOME 51 got some massive performance improvements. Plus, it looks almost exactly like macOS, which I really like.