The PulseAudio module can be unloaded temporarily before making a permanent configuration change
pactl unload-module module-suspend-on-idle
If this is found to be effective only one configuration change is needed
sudo sed -i '/load-module module-suspend-on-idle/s/^/#/' /etc/pulse/default.pa
Configuration file /etc/pulse/system.pa is only for running in system wide mode which is not suitable for most Linux systems
What is wrong with system mode? – PulseAudio
@doublejim disabling power management for audio devices would not be considered for default configuration because some laptop users would not be happy about the reduction in battery life if audio devices are not suspended
Adding options to reconfigure audio driver in ALSA alongside audio controls for PulseAudio/PipeWire
is not appropriate and unlikely to be considered by KDE developers when reconfiguration can be dealt with by a single terminal command
Unloading the PulseAudio module would be more appropriate to have as an option in KDE audio settings but also unnecessary when reconfiguration can be implemented by user