I got annoyed by doing the workaround manually.
As it (in my case) is enough to open the ease of use audio settings it's easy to script.
It just opens the settings, waits some seconds to make sure it really got fully opened and then closes the settings again.
You can either set this up with Task Scheduler to run on user login or add it as a link to the (common) startup folder. (Use win+r, shell:startup to quickly open it. For common it is shell:common startup)
.bat version
start ms-settings:easeofaccess-audio
sleep 5
taskkill /f /im SystemSettings.exe
or Powershell (.ps1) (you need to set the ExecutionPolicy accordingly or use the bypass)
Start-Process ms-settings:easeofaccess-audio
Start-Sleep -Seconds 5
Stop-Process -Name SystemSettings
Maybe someone can find out what exactly happens on opening the settings so we can directly trigger that.
I also tried stopping/starting audiosrv but it didn't help.