You can adapt and use this free online form to collect feedback from playtesters:

form: https://docs.google.com/forms/d/1djp-n0RfIyTY-q4MbbFjX6Wi27zq9Tn6mVzZd-yGf-c/copy

details: https://boardgamegeek.com/thread/3274021/free-playtester-survey-handout-for-your-game