Other users have reported similar issues with intermittent audio on kernel v5.15
Updating kernel v6.0 or v6.1 has bee n confirmed to resolves this issue
Audio randomly cutting out on Manjaro KDE
Audio Trouble (Both PipeWire and PulseAudio)
Metapackage manjaro-alsa is included on all Manjaro ISOs. I do not expect that reinstalling this will help resolve ALSA audio issues
Installing manjaro-pipewire to replace PulseAudio will not help with ALSA issues either