I don’t think you need a guide. Just install the extension and give it a try. It’s pretty simple and intuitive.
still no possibility to set default container for Ctrl + T
It might be possible now, you could give it a try. But anyways, I don’t see how changing the default container for new tabs could be useful. There is a default container which is the “no container”, why would you want to change it?
EDIT: yes, it is possible now.









As absurd as it might seem, the Steam Controller is technically not compatible with Linux.
What I mean by this: officially, it only works with Steam Input, which only works for Games you launch from Steam. It is not fully recognized and supported by Linux yet, and perhaps it never will.