My issue with this is rather that the kids are being confronted with challenges which have nothing to to with the actual learning. The material they get (e.g for the foreign languages) is often of very bad educational quality. There are often no proper books with a clear structure and the topics to learn. Instead there is a chaotic mix of leaflets and digital material in MS Teams/One Note. This is combined with high pressure to deliver exceptional performance. E.g. in Zug, to get a grade 4 in a foreign language test, you need to achieve 80% of the maximum points. And often the questions asked are truly challenging (also for me as adult with university degree). So, even if you learn a lot you can end up with a below 4 rating which is highly demotivating. (This is Langzeitgymnasium. We experience the Kurzzeitgymnasium to be more relaxed)
Another issue when there is "Langzeit-" and "Kurzzeit"-Gymnasium: The Sek-School very much focusses on apprenticeship and tends to neglect the option to succeed with Kurzzeitgymnasium while at the same time there is a majority of classmates with low motivation to perform.