Well... depends on your workflow, usecase and app usage.

Also it's not really fair to compare a WM with a DE.

There are pros and cons.

Tiling WM need much less resources and libraries, and therefore less potential vulnerabilities and security threats.

On the other hand WM keyboard shortcuts can break some specific application usage. Most applications are hard to use without floating window options.

Gnome on the other hand is imho often counterintuitive and not easy to customize without third party software.

KDE is built on Qt libraries which I personally try to avoid.