SUMMARY STEPS TO REPRODUCE 1. Enable Desktop Effects -> Mouse Click Animation 2. Start clicking OBSERVED RESULT Animation works EXPECTED RESULT Animation doesn't work SOFTWARE/OS VERSIONS Operating System: Kubuntu 21.04 KDE Plasma Version: 5.21.90 KDE Frameworks Version: 5.82.0 Qt Version: 5.15.2 Kernel Version: 5.11.0-17-lowlatency (64-bit) Graphics Platform: Wayland Processors: 8 × Intel® Core™ i5-8250U CPU @ 1.60GHz Memory: 7,6 GiB of RAM Graphics Processor: Mesa Intel® UHD Graphics 620
Enabling the effect in System Settings simply allows this mode to be turned on and off, but you still need to do that manually. The default keyboard shortcut to do so is Meta+Shift+8. You can see this or change it in the applet's settings, accessible by clicking on the Configure button on the right side of its list item in System Settings.