Backup Retention
If you choose to enable automatic backups, you can choose one of the following preset retention periods: 7 days, 15 days, 30 days, 45 days, or 60 days. The system automatically deletes your incremental backups at the end of your chosen retention period.
https://docs.oracle.com/en-us/iaas/Content/Database/Tasks/backingupOS.htm

Data Catalog
Data Catalog: it helps to get information about the entities in your Oracle Autonomous Database and to see the effect that changing an object has on other objects. Data lineage and impact analysis is key for a Data driven company.

https://docs.oracle.com/en/cloud/paas/autonomous-database/adbsa/appendix-autonomous-database-data-warehouse-workload.html#GUID-604A08F8-8021-43CE-AA95-823045E14BD8

In the Restore prompt, select Specify Timestamp or Select Backup to restore to a point in time or to restore from a specified backup.
https://docs.oracle.com/en/cloud/paas/autonomous-data-warehouse-cloud/user/backkup-recover.html#GUID-78C28C41-AA87-4AD7-BEB6-693235C73F3C