I’ve just finished my first semester exams and even if rumor has it that studying within the
framework of the Erasmus program is not much hard work, don't rely on it too much.
So yes, the number of class hours is much less intense, but the personal workload that is required can sometimes be quite substantial.
I regularly have group work to do as well as personal work. Moreover, you have to keep in
mind that all the exams are in English, so it adds to the difficulty. However, you just have to be organized and keep in mind that Erasmus is not "a vacation", as you might often hear.