From: Steve Litt via Talk <talk@lists.gtalug.org>
I've also heard that the KDE Plasma Desktop Environment isn't as piggy as the KDE from the 00's and 10's. Every once in a while I think of trying it again. But then I remember that using a single KDE application like K3B (a truly great DVD recorder) pulls in dozens of KDE libraries, some of which bog down the computer when running.
These libraries are probably shared libraries. Most of the code will be in read/execute - only segments. - they will only be loaded when they are in use - when memory pressure requires a page of a shared library to be evicted, it need not be written to a page file: it's unchanged so it can be reloaded from the library file. K3B works under GNOME too. At least when I last tried it.