Offizieller Kommentar
"I dont think you can find a single person who succeeded in recording in e.g. Audacity."
I can -- me.
This is because I understand that Audacity doesn't provide support for ASIO devices baked-in, and I need to either compile my own version with ASIO support, or use a 3rd-party utility like Voicemeeter to bridge the ASIO outputs to an audio device type that Audacity can access.