To seperate your game and discord audio, you can try to use Https://vb-audio.com/cable/ or https://vb-audio.com/Voicemeeter/. Source: over 1 year ago

Helvum allowed me to use drag & drop to manage system audio paths. I strongly suggest reading how it works before using it, let alone installing it. Helvum is very easy to use but it's not obvious how it works, so actually RTM, watch a video (it doesn't come with help built into the app) https://gitlab.freedesktop.org/pipewire/helvum. Source: 12 months ago

The example referenced the it's Catia, but qpwgraph https://gitlab.freedesktop.org/rncbc/qpwgraph and helvum https://gitlab.freedesktop.org/pipewire/helvum should do a good job too. Either way, it's easy to achieve multiple outputs with any of those. - Source: Hacker News / about 1 year ago

You can use helvum to stream the audio of any app to your microphone. There's some issues with this solution though:. Source: about 1 year ago

Audio didn't pass through correctly for me, but Helvum fixed that. Source: about 1 year ago

Just patch inputs and outputs to audacity (or your recording software of choice). For pipewire theres helvum[0] or qpwgraph[1]. For JACK there's Catia[2]. [0]: https://gitlab.freedesktop.org/pipewire/helvum [1]: https://gitlab.freedesktop.org/rncbc/qpwgraph [2]: https://kx.studio/Applications:Catia. - Source: Hacker News / about 1 year ago