And specifically to your emphasis on needing funding, that's just not the case anymore. Everything is cheap. You can live stream from your phone in 480p with a $20 ring light, and fans of the content will still throw money at you. It happens all day long on Twitch.
> Additionally - 15k monthly listeners on Spotify is a pretty great starting point. Most indie artists, regardless of quality, will struggle ever even reach that without a lot of outside help (or luck).
Again though, that was after almost a decade of gigs and touring and marketing. All it took was opening their eyes to those series of opportunities that platforms provide, and then applying all of their effort toward those instead of pursuing the traditionally prescribed music industry path.