As we wait......(secretly wishing for someone to speed up the process) We can only dream...https://www.sammobile.com/news/galaxy-note-20-stable-android-13-one-ui-5-0-update-released/?utm_source=telegram
Had to come back and report that after switching off adaptive colour tone. The advanced settings toggle appear on the vivid setting thing. So I think fault here was not the device but the operator.
