Every ensemble you will ever be in is a group class. Things will be learned from the conductor and perhaps other players at every rehearsal.

And every ensemble has someone who is ahead of the rest and someone who is the low achiever of the group. Either of those people can be a real pain if they don't handle it right. I was in an orchestra where the concertmaster was a fine and capable player but also a chronic sigher and eye-roller.

Perhaps not much learning is happening in your class but think of it as entry-level ensemble-skill building. You need that experience of fitting in and staying with other players.  You don't get much of that in private lessons or practicing at home.

Do your part, finish out the term, thank the teacher and other players for his/her/their time and patience and then look for a more challenging situation commensurate with your growing skills.