I may have found a way to use Spotify without DMCA risks by using Voicemeeter and the Soundtrack plugin.
I recently found a loophole with your Soundtrack plugin that allows anyone to use Spotify without any DMCA takedowns/risks. The Soundtrack FAQ states that Voicemeeter is not compatible with Soundtrack, which isn't totally true. If people have Voicemeeter set up in a way that their mic, desktop audio, Spotify audio, etc are in different sources, they can turn those different sources into different tracks. That is how my OBS is set up. Now if I use the plugin, I can make every one of those tracks EXCEPT the SPOTIFY source go into track 6, not allowing the Spotify to go into my vods, meaning I don't get DMCA striked. I am not sure if this will 100% work. I also do not know if I have to have the Soundtrack app open for the OBS plugin to work.
I also do not know if this is still against DMCA guidelines.
@EllieRows Right now, Twitch only gets DMCA claims off VODS, not live streams. If my method listed doesn't work, why would they make Soundtrack?