In my experience, KDE is more responsive (especially under load) but its code base is less stable. It makes sense: Gnome is pretty minimalist in terms of availa

In my experience, KDE is more responsive (especially under load) but its code base is less stable. It makes sense: Gnome is pretty minimalist in terms of available UI, uses JavaScript and shell scripts to provide integrations, and exposes quite a small native surface area. On the other side, KDE consists of almost exclusively native (C++) code, although I believe some tools are written in Python. Great for performance, but C++ has a reputation for a reason. For what it's worth, the last major release has been very stable. It has also always been stable for me on my Steam Deck. I have a feeling KDE's issues are similar to WordPress': external plugins hooking deep into the native API, making it seem like the software they're integrating with is unstable.