You know what I really love about MacOS? Every time I pair my bluetooth headphones it defaults the microphone to that sound input. Can you disable that microphone like in Windows? Nope.
I use SoundSource because without it digital audio has audio levels locked, which is also asinine. We have to admit, audio control on Macs is straight up garbage, and having to buy third party tools to do something the other major OS does out of the box is not a good look.