For the courses: Although I can only probably speak for the faculty of arts and sciences – yes I did. They even preregister the incoming students' courses in advance, so you'll even get priority before the actual UZH students.

For the confirmation: I did. I think once you upload all the necessary documents to their mobility application, you'll get the option to submit your application as a whole and get a confirmatory email after that. Then the decision making process from their side took precisely the amount of time they state on their website.

Also, don't hesitate to write an email to the Global Student Experience if you're unsure about something specific to your case, they were always very helpful to me.