Deep Work tries to maximise the amount of feedback given and received. This means more confrontations which may not always feel comfortable, but after understanding and integrating the feedback everyone will learn much more.
Our friends at Colony.io have done an incredible job summarising Feedback Best Practices. We recommend making yourself familiar with them and applying them next time you write or receive feedback.
You can use this Typeform to write extensive Feedback to your Collaborator and if you just want to leave a note (or want to feedback someone with a higher rank) please use this Typeform.