gnome with arcmenu (I like windows like menu - the ads) dash to panel (place window menu at bottom alongside commonly used apps, date/time, and the control center), window thumbnails (pip any window) and a few other plugins is very nice looking imo feela like an os from the future, and its clean, stable. I got kde plasma looking pretty close to it layout wise, drag and drop was a bit more finnicky than enabling extensions and clicking through settings.

I just overall like the look better and it feels better to use, gnome feels like modern de, you can’t just throw something together (someone who knows what they are doing coded those extensions and how it could fit within your layout, they tested it over time) while kde plasma feels like a really feature rich de from 2012, layout placement is up to you to test and figure out, idk how else to explain it in my head