GNOME desktop and KDE Plasma are definitely the top 2 desktop environments used in Linux. In this video, we will be seeing how they both compare against each other in terms of visual aesthetics, looks and style, performance, customizability, stability and workflow.

GNOME has a top panel based design. The top panel has all the essential elements like basic controls, notifications, and the calendar.
The application menu is a fullscreen one with large icons and a search.
Pressing the windows button invokes an overview with all the running windows. This does make switching easier, but I feel that this setup is somewhat distracting.

GNOME is a modern desktop environment that is keeping up with technology. The animations and effects are generously incorporated which make the desktop look LIKE a graceful dance. A large number of Linux apps are built for GNOME desktop so the themes and the integration work really well, making all the applications look so uniform. This is a huge plus point for gnome desktop.

KDE PLasma desktop, on the other hand, is built using the Qt framework. The desktop layout is rather traditional with a bottom panel.
KDE has a very polished look with slick animations and a clean desktop. The animations are very different from what we see in other desktops.
The themes are really good with a very high level of detailing work done on them.

All in all, KDE Plasma is a gorgeous desktop environment as far as looks are concerned and it has this touch of superiority to it.