When using a greeter like greetd,
the PipeWire#Low_volume
workaround doesn't work. The alsa-restore.service
restores the settings for
the first logged-in user.
This is why I included a copy/paste service to fix it, following these steps:
alsamixer
alsactl -f ~/.config/asound.state store
systemctl --user enable --now alsa-restore.service