Because I have also been an exchange student, I can tell you clearly that exchange students and local students cannot be completely equated. I don't know what grade you are in now. What are your plans for the future? What are the requirements for credits and grade points? This probably determines how you want to deal with the problem of course selection.
To be honest, I don't think the undergraduate teaching in Taiwan Province Province is much different from that in Chinese mainland. However, universities in Taiwan Province Province pay more attention to undergraduate teaching than universities in Chinese mainland, and professors are more careful in preparing lessons. Reading materials will be arranged in advance for each class, and some classes will require you to pay attention to specific news at ordinary times ... but whether it is implemented or not is a personal matter. My feeling is that it is really hard to attend every class in strict accordance with the teacher's requirements; If you put water on it, it's actually fine.
Last year, I took 18 courses, which happened to be six courses. Anyway, I feel particularly hard-because I'm very serious (well, actually, it's because I'm too high to go out and play on weekends, and I'm even more tired after studying for a week without rest ...). There are many courses that require writing papers or class reports, which is much more formal than that in Chinese mainland! The quality is also much higher. Of course, it depends on your major ... as far as I know, my 18 score is relatively high among exchange students. Some junior and senior students have enough graduate credits, or they don't care about credits at all. They only get 2 points or take two or three courses, which is very leisurely-but that doesn't mean they don't attend classes at all. Just because you can attend as many classes as possible and experience and feel more classes in different fields and majors doesn't necessarily mean that you have to take the credit.
Actually, I regret taking so many classes now. If you have enough credits, I suggest that you take fewer courses and spend more time listening to courses in other departments and even other schools. Many famous scholars or excellent teachers in Taiwan Province Province combine practice with teaching, and many schools also have their own advantageous disciplines. It's not easy for us to exchange once in Taiwan Province Province. Let's cherish this half a year ~ ~ except sightseeing and eating. I wish you a happy exchange life next semester!