Notifications' circle countdown disappeared?

Was that cool moving circle removed or disabled somewhere in the settings?

Operating System: Manjaro Linux 
KDE Plasma Version: 6.0.3
KDE Frameworks Version: 6.0.0
Qt Version: 6.7.0
Kernel Version: 6.8.5-1-MANJARO (64-bit)
Graphics Platform: Wayland

Neither. Maybe a Qt 6.7 regression, or a missing package.

I don’t know why, but going to Plasma Settings> Window Management> Desktop Effects, then pressing “Defaults” and “Apply” seems to fix it.