My Question or Issue
I noticed that the windows desktop client can't find the Audio renderers on the network properly. But using something like VLC works perfectly same with Chrome browser.
The discovery part for spotify desktop and how it interacts with chromecast devices is spotty as **bleep**. What you can do to circumvent this is to start the cast from a phone, but then we have the disconnection issues (see my other thread)
My own streaming experiment done in electron, react and some webworkers, actually work better and more stable than Spotifys own client. So not sure how you guys could have missed the target so badly.