webcamoid VS Screenshare-with-audio-on-Discord-with-Linux

I have tested OBS's Virtual Camera feature, but it only provides a single virtual camera from what I've tried. I also tested a piece of software called Webcamoid. It was easy to use, but I couldn't get the MediaStream object from it using Tauri on MacOS for some reason, even though it worked when I opened the test app in Chrome instead. I am not sure it would enable multiple instances either.

That did not seem to do anything with Cheese, however it lead me down a rabbithole to https://webcamoid.github.io/ with links to virtual camera drivers for "akvcam" and "v4l2loopback" which solved the issue within browser. I installed both, not sure which one was needed.

Webcamoid

yes, obs-virtualcam, or this open source thing will do it https://webcamoid.github.io/

We can create virtual microphones, cameras, etc., e.g., and capture those devices using Web API's; see https://github.com/guest271314/SpeechSynthesisRecorder/issues/17, https://github.com/edisionnano/Screenshare-with-audio-on-Discord-with-Linux. See also --use-fake-device-for-media-stream, --use-file-for-fake-video-capture flags on Chromium-based browsers

Chromium and Chrome refuses to capture monitor devices on Linux. Read this https://github.com/edisionnano/Screenshare-with-audio-on-Discord-with-Linux README and the README at https://github.com/guest271314/captureSystemAudio very carefully. At best you can capture tab audio, not whatever is output to speakears and headphones, in spite of the systemAudio constraints, which is poorly named, and actually misleading.

Screen sharing with audio in Discord works fine.

If you are actually trying to record output to speakers and headphones, not just microphone input see https://github.com/edisionnano/Screenshare-with-audio-on-Discord-with-Linux, https://github.com/guest271314/captureSystemAudio.

This github project does a great job of explaining the problems with discord screensharing on linux (as well as a solution). It also mentions to a standalone project that functions as a temporary replacement for discord screen sharing if you install the dependencies (e.g. Pipewire).

Also I see all this work put in to seemingly unify the development processes between two different operating systems that somewhat undoes features that android already had, so i have to assume that this was done so android and ios could be updated with the same features simultaneously, but we already see what that looks like - a bunch of bugs on different android hardware and versions. And in all this time that this process to unify the development of the mobile app was worked on, there's a feature in the voice & video recommendations on the discord feedback website that has by far surpassed every other request in that section as something the community actually wants, a feature that has gotten daily comments for over 2 years, which is to fix the sound when sharing an application in linux - a process with a pretty thoroughly documented solution here