I'm just wondering if it would be worth adding something like a bq_ingested_timestamp to the events being sent to BQ such that users could use it to monitor and see differences between time of event creation and time it landed in BigQuery.

To me that would be something i would monitor in BQ and raise errors or alerts if i was to see the BQ data getting a bit stale or slow in some way.

Not sure how relevant that is in terms of how events flow through the system but was just thinking.