Ask HN: How do you use cloud only databases?

Recently for a new project I am working on, I wanted to use GCP's datastore. That got me on a quest to learn more about cloud only databases like Datastore (GCP), DocumentDB (Azure) and DynamoDB (AWS).

While they all seemed ok at first, I noticed that you could not have a backup of your data to protect yourself against accidental human data corruption (bad update got pushed to prod and now your data's corruped - assuming this issue was not caught in stg etc.).

So if you use such a database, how do you handle such cases? Also what are some gotchas of such databases (from experience)?