Hi @akko,
Good afternoon and thank you for your question. In my opinion, the easiest route for you to take is to create a Microsoft Forms in which the names aren't recorded. You can refer to this article: Set up your survey so names aren't recorded when collecting responses
You can also maximize Polls on each meeting and look for the option Keep responses anonymous. Please refer to article: Poll attendees during a Teams meeting
I hope I was able to assist you on your question, if yes, please Upvote my answer and accept it as answer.
Have a great day ahead akko! 😊