I don't get the hate Cosmic gets. The only mistake they made is that they released the first non-testing version of their new DE too soon.
Cosmic is the only full DE with usable tiling out of the box & tiling is superior, full stop. If I had to use a DE again I would probably use Cosmic. Even if we ignore tiling & focus on the floating experience, even today it's better than Gnome without extensions, it's not even close.
The Linux community has an oddly selective memory. Everyone remembers when Ubuntu had Amazon's crap preinstalled, but now that Plasma 6.x is actually good everyone is conveniently forgetting how incredibly bad KDE 5 had been for most of its run, like so bad that it's hard to put it into words. Cosmic is much better than Plasma 5.x & it's getting better.
(though I do think excluding the use of Ai tools in a climate where all web browsers & operating systems are accepting LLM contributions is a wee bit strange & largely political)