GNOME seems to be least buggy DE and gets out of my way when doing things. A nice bonus is that it also looks and feels good.
I used to use plasma but it was just too buggy for me. Just today a random user realized that installing a theme from the built-in theme selection thingy deleted all his data...
I have some hope for cosmic DE as it seems like they try to emulate GNOME's workflow with some twists.
As someone who had only used GNOME or DEs based on / inspired by it for 18 years, I had to switch over to KDE on my work laptop because GNOME was giving me endless trouble with the external monitor for some reason (to the point where I could choose between either ridiculously impractical resolutions or mouse flickering).
I'm now actually quite satisfied with KDE (although I continue to use GNOME apps too). I guess every one of these DEs has their own share of bugs.
I'm a neckbeard and I vastly prefer GNOME Shell to any other DE (including proprietary ones like on Windows and macOS). I still don't consider myself a "fan" and I have plenty of complaints about it- I just have way more complaints about all the others... :D