I guess it depends by country as well agency policies (public clinic vs private practice etc)

My ex T has consulted peers and supervisor about me (and her other cases). She told me because I asked her to give me a transitional object and she was uncertain about the ethics and if it would be therapeutic.

However, subsequently, I realized she also consulted with peers when she felt stuck with me or other cases as she'd try things which I later realised was obviously learned from current T.

My counseling ethics lecturer says that counsellors especially in agency settings do discuss cases and consult each other as well as bring cases up for supervision.

They apparently don't give names or identifying details, eg - they give pseudonyms and say "client who is a young adult healthcare worker" vs "client who is a 23 year old nurse"...but the client doesn't get told they were talked about.