Notion Reactions is a new block called “reactions” for Notion. If you create any content on Notion such as documentation, weekly updates, daily updates, reports etc… and you are using Notion collaboratively with others you might want to use Notion Reactions to collect feedback and increase engagement.

You will be able to collect the reactions such as "Like, Love, Surprise, Happy, Sad and Angry" and also you will be able to track # of impressions per block.