Whether you are following What Your Search Engine Really Logs: How to Check Your Full Search History, here is deep analysis worth reading.

Managing search logs is an ongoing administrative task rather than a one-time adjustment. Search engines routinely introduce new telemetry trackers and expand sync integrations across desktop and mobile platforms. Routinely checking your account dashboards ensures that the information stored about your personal habits reflects what you actually want preserved. Adjusting retention controls, pruning cross-device sync pathways, and purging client caches puts ownership of your digital profile back where it belongs: in your own hands.