Currently, any note created on a contact record automatically syncs and displays on all associated opportunity cards by default. There is no setting to disconnect or isolate them.

For workflows where notes are meant strictly for internal contact-level tracking—or conversely, when deal-specific logs shouldn't clutter the main contact view—this forced cross-sharing creates unnecessary clutter. Please add a toggle or setting that allows users to choose whether a note syncs to an opportunity, or keep them strictly isolated to the specific record they are created on.