If I create a game, does it got into the automatch queue?
No. Tables you create yourself are separate and do not join the automatch queue.
So how do I set up a game that goes to automatch?
You don't. You use the options given in the automatch screen, then join the queue.
For rated games, that makes sure that nobody can "cook the board" anymore (play the same kingdom over and over).
For unrated games, yes, it might be an option to customize a table and then put it into the unrated queue.
Thanks. I now know it works differently than under the old version. That's what I was missing.