QLDB provides time travel features, too (if by "time travel" you mean being able to query the state of a record at an arbitrary point in the past): https://docs.aws.amazon.com/qldb/latest/developerguide/worki...
SELECT * FROM history('foo', `2021-05-18T20:00:00`, `2021-05-18T20:00:00`) as t WHERE t.metadata.id = 'bar';
In the examples shown in the AWS docs, the results of a historical query are not changes made to the document, but the fully resolved state of a document at the requested timestamp (or within the timestamp range). Like other threads on this page mention, this is an unusual but not uncommon DB feature these days.