If you've got a really helpful piece of feedback to share, you can do that directly from playback!
From the top right corner you can share the call. You can choose a team or individuals to share the call with. They'll get an email with your note and a link to the activity.
Sharing to Slack
If you've got the Slack integration installed, you'll see an extra option.
You can choose any teammate or public channel you have access to in your workspace.
Note: only registered Jiminny users will be able to access shared activity from Slack.