The doccument introduces how to achive temporal records.
But it does not explain how the achival data can be consumed, so I do not know what it is used for.
Any more instrctions about this feature?
You can use tctl, for example:
tctl wf listarchived -h
Or via ListArchivedExecutions api from your sdks.
And you should be able to get histories by describing it, for example:
tctl wf desc -h
tctl wf show -h
Note that for list queries, visibility query syntax for archival is limited and varies depending on the provider you use, see readmes for s3 and gcloud.