Hi,@Yahor Navumenka Welcome to Microsoft Q&A thanks for posting your question
Can you please share what is the use case? and why do you want to handle a backup manually?
Here are the responses for your question:
There is no direct way to get the last sync date/time. But when you list the geo-replicated backups you get the timestamp next to the backup. That indicates the point-in-time to which the backup can restore the DB, but not the replicated time.
No, you cannot get direct access to backup files in Azure SQL DB. They are completely service managed. But I have a question: What do you intend to do with direct access to backups?
When you say secondary storage, I am assuming you mean backup in the paired region. yes it works. Doing simple geo-restore would be a simple test scenario
Same answer as above.
If you want backups to be replicated to Availability zones then you need to select ZRS or GZRS. but the failover mechanism across availability zones is more seamless (provided you select Multi-Az for compute and backup storage) i.e., when you perform restore if the primary Az is down, restore will happen automatically from other zones.
I hope this information is helpful
Regards
Geetha