The biggest new features in KDE Plasma 5.24 include support for fingerprint readers, which you’ll use to unlock the screen, authenticate in apps that require administration password, or authenticate with sudo on the command-line, as well as a brand-new Overview effect that lets you control your virtual workspaces and also find search results from KRunner.
Talking about effects, the “Cover Switch” and “Flip Switch” effects are back, QtQuick-based effects saw a major performance boost for NVIDIA GPU users, and the “Scale” effect replaces the “Fade” effect as default when opening and closing windows.