Many people have attended training days about feedback skills, but still shy away from giving feedback. This is because giving effective feedback requires a mindset change. When you start to genuinely view feedback as a gift that helps you grow your practice, then you will naturally invite feedback from others, and give feedback to others in return.
Giving feedback and holding difficult conversations can take confidence and courage. What can help here is knowing how to set up the right dynamic when delivering a difficult message, so the other person does not feel judged.