That definitely sounds like a tricky Windows 11 audio routing issue since the crackling only appears when using the virtual cable/APO setup and not when connecting your headphones directly. It might be worth checking for driver conflicts or buffer settings because Gothic running fine makes it even stranger than Elden Ring. I ran into similar software-specific quirks before while streaming with cinehd for ios, and isolating each audio component one by one helped narrow down the culprit. Hopefully...