When I was using the Mastodon app, there was no way to switch.
Little to nothing was happening.
I was also on rando server.
Once I switched servers and got Fedilab, I have control, but I needed to have knowledge about how the back end works.
A vast majority of people don't know, don't care, and won't enjoy themselves if it looks like no one is saying anything because their in their local, random server.