Bug reproduced with Whonix-Virtualbox.
Bug reproduced with Kicksecure-Virtualbox.
Cant reproduce it with Debian-Virtualbox.
Cant reproduce it with Whonix-Qubes.
Cant reproduce it with Debian-Qubes.
Thats mean for surely its not pipewire to be blamed, rather something effecting pipewire with specifically whonix/kicksecure on virtualbox.
Could it be vboxguest-addition/dkms which is installed from debian?