[LAU] Default (audio) devices in Plasma (KDE)

[Max]

Hi list,

since Kubuntu 20.04 there are big stars next to the volume controls for 
each audio device labelled "Default Device". First I thought that's 
cool, now I can set the default device and it stays that device. 
However, the system decides that if the user plugs in an USB soundcard 
the newly detected soundcard will be the new soundcard. :(
In my case if I plug in a zoom H2_n recorder the desktop audio will be 
switched from the Jack Sink to the teeny speaker which is in that 
recorder. Not what is desirable.
Is there a solution to this?

https://imgur.com/LAzX8rg

m