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.
From the README:
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 :)