This article was written in the sense of bashing gnome but yet some points seem to be valid. It explains the history of gtk 1 to 4 and the influence of gnome in gtk. I’m not saying gnome is bad here, instead I find this an interesting to read and I’m sharing it.
Cosmic is basically GNOME in many aspects it seems. They are doing something different, but in my eyes similarly bad in many ways.
They write a completely new GUI framework. That alone could already tackle some of the problems mentioned in the blog post.
Edit: and please don’t confuse the already existing Cosmic Shell with the in-development Cosmic DE.
Yes I also meant Cosmic DE, which is similar to GNOME in many things.