The best template to run a retrospective in notion. It leverages formulas to show only enough information about how many people agree with or want to discuss a subject.
This board has two steps: 1) In the first one, you can add cards and vote without being influenced by other people's votes. 2) In the second step, you can see a summary of how many people voted to agree or discuss without seeing who it was. This helps remove bias when discussing a card.
You can always open the card and see who voted, but you can choose not to. Anonymity is not the goal of this board.