Saw this at the 2023 filmfestival Ghant (Belgium). Very tense experience. Ample opportunity to feel along with all protagonists, even with those I disagree with. I for myself changed positions with each new development. It is my favorite category of film, where one continuously wonders: "What should I have done in that situation??" Many unexpected turns of events, all within the realm of normal possibilities yet still unexpected hence surprising each time, while the problems escalate beyond control.
Maybe the right-wing suggestions against teacher Carla (with a Polish name) and fellow student Ali (with immigrant parents), in particular coming from one particular direct-hitting student, are a bit over the top and unnecessary to make a complete story, but I assume the filmmakers included it on purpose, as those opinions are not uncommon and there is no reason to hide these. Like in the real world outside school, such and similar "arguments" confuse every discussion and only widens the gap between people.
There is a varied set of teachers who each have a significant role in what happens. They think differently about several issues, but not really out of the ordinary. Of course, the parents are much more different and have their own role too, not always a positive one but I assume that reflects reality. Ditto for the students.
All in all, while nothing novel or unexpected is presented, we get a broad overview over common opinions involving dealing with small theft, racism, immigration, adolescent behavior, and last-but-not-least interactions between students, parents and teachers. Nothing we see here is unrealistic. Sufficiently complex to keep us involved and interested.