We have a bandcamp alternative, it's called @blocktunes. I have also tried to create e-commerce alternatives with @hivelist the problem is that nobody uses them as intended, or at all. I will argue that one huge problem is the lack of user base that is attractive to the mainstream. We are like the island of misfit toys in a way. Most of us hate mainstream social media, that's why we are here, but we have to figure out how to attract the users from the other platforms.
Going back to the music situation, while I was building BlockTunes.net, another platform rose up called Emanate on EOS then eventually Polygon, but they have recently shut their doors, unfortunately, because of lack of use. Web3 and crypto as a whole is still a very small niche. You go offline and talk to actual people in the real world, and most still think it's a scam, don't understand it, or regurgitate what is on MSM. Like my grandmother can't even say Bitcoin correctly, but she can sure talk about the poofy headed SBF and his scam, lol.
I am coming to the conclusion after trying to be someone who provides these kind of alternatives, that we are either too early, or it is never going to happen the way we want it to. It's just facts. I mean look at the fact that Bitcoin is now a 'digital gold' versus an alternative peer to peer currency that it was supposed to be. We were supposed to be all buying coffee with Bitcoin by now, but you see how that is going.