I gave it a quick go and very few things work at the moment. None of the programs you listed do.
From the README:
At the moment it can render simple applications that do GLX, EGL or Vulkan graphics (fully hardware accelerated) nested in an existing X server.
And that sounds about right. As far as I can tell it doesn't yet have a lot of the core X11 stuff that "normal" clients expect. For example xterm doesn't start because requests like X_AllocColor, X_OpenFont, X_PutImage (a few picked at random from the error output) are not implemented yet.glxgears on the other hand does work :)
It's the opposite for me for one reason: hashtag follows!
There are very few people I want to follow for everything they have to say. I am interested in subjects, topics. Mastodon's hashtag follow feature gives me this. It's not perfect, you need to be on a relatively large instance to take full advantage of it (since it only picks up toots that make it to the instance) but it's still much, much better than no hashtag follow at all.