What is the correct way to install package “manjaro-pipewire”?

Can someone check for me if you use plasma if you have Firefox visible in systemtray audio icon (plasma-pa widget) when you play audio on youtube?

I described my problem here

It used to be ok before recent updates.

Do you have any knowledge if Manajaro dropped pulseaudio permanently? Is this the case with other distributions? What was the reason for this move?