hi Exoomo,
I’m new to Manjaro XFCE & arch,
I’ve been reading the ArchWiki…
Composite manager…
This compositor may cause video tearing in applications, see video tearing.
To enable or disable the Xfwm compositor and adjust its settings, go to Window Manager Tweaks:
$ xfwm4-tweaks-settings
could it be that, that’s causing your sound problems ?
also found this…
[HowTo] Troubleshoot crackling in PipeWire
hope it helps,
k.