Please Modify MSM notifier to use notify-send so it can use native notification systems across all DE
Currently MSM uses it's own Qt notification popup system instead of the XFCE one which looks very out of place.
According to Matti Hyttinen, this could be changed so it works as I expected it would to begin with and use the standard XFCE notification system in the top right corner.
https://forum.manjaro.org/t/manjaro-notifier-popup/129043/
Please look into this, it would further polish the already high quality manjaro XFCE user experience.