Both the Wallpaper slideshow and the Media Frame widget have memory leaks. Because my wife's computer crashed a lot lately I looked into CPU temperature and RAM usage. Well, temp was okay but memory was filling up till at the end the system crashed. The widget has a default refresh time of 6.8 seconds and in that rhythm I saw a memory increase. I now deleted the frame from the desktop and memory usage stays normal now. KDE Plasma 5.12.3 KDE Frameworks 5.44.0 Qt version 5.10.1 Kernel 5.15.14-1-Manjaro
*** This bug has been marked as a duplicate of bug 368838 ***