Can I set a certain audio device to be used as a default using wireplumber?

Perhaps a stupid question: Can I set a certain audio device to be used as a default using wireplumber - and can this setting be made permanent so that it survives a reboot?

Problem is that I cannot determine if this is a wireplumber or an xfce problem. Hence the two posts.

Here’s what’s happening:

I can successfully set the default device as I wish using wpctl set-default {DeviceID}. Verifying the setting in wpctl status indicates that the change was successful:

 ├─ Sinks:
 │     34. Internes Audio Analog Stereo        [vol: 0.74]
 │  *  48. GM107 High Definition Audio Controller [GeForce 940MX] Digital Stereo (HDMI) [vol: 0.70]

However, after restarting the machine, the setting is reverted:

 ├─ Sinks:
 │  *   34. Internes Audio Analog Stereo        [vol: 0.74]
 │      48. GM107 High Definition Audio Controller [GeForce 940MX] Digital Stereo (HDMI) [vol: 0.70]

Why does it not seem possible to make that setting permanent?

Duplicate topic