SUMMARY
Mouse Click Animation is not working consistently on X11, it does work on Wayland just fine. By not working I mean the animation does not play for left, middle or right click most of the time.

If you leave it running throughout the day, you might see it work the one time out of 20 - 30 clicks, I've not found any errors logged.

STEPS TO REPRODUCE
System Settings -> Window Management -> Desktop Effects -> Mouse Click Animation
Enable the option, activate it via shortcut if required and attempt to use it on the desktop

OBSERVED RESULT
The animation will play 1 out of every 20 attempts as an estimate, and sometimes it's delayed.
Comparing that to Wayland where it works on every click at the time you press the button.

EXPECTED RESULT
To work as it does in Wayland currently, where every click you make triggers the animation

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Arch Linux - 6.11.6-zen1-1-zen
KDE Plasma Version: 6.2.2
KDE Frameworks Version: 6.7.0
Qt Version: 6.8.0

AMD 7800XT - mesa 1:24.2.6