I think the effects of how the services operate in the background are observable by the real users at some point. Unfortunately it's often too late do something about it. You get hit by censorship when the overton window moves past you, you get deplatformed when your mastodon instance shuts down - that has happened to me and so that's why I have bad aftertaste from mastodon.
On nostr there are some very cool sub-communities - there are surprisingly a lot of surfers, there are multiple book authors with bestselling books, there are local non-english communities, etc. And on top of that there's a variety of applications on top of it, like divine.video.
