MySQL workloads are often read-heavy and support customers with operations in different geographical locations. To provide for Disaster Recovery (DR) in the rare event of a regional disaster, Azure Database for MySQL - Flexible Server offers Geo-restore.
An alternate option for DR or read scaling across regions is to create an Azure Database for MySQL flexible server as the source server and then to replicate its data to a server in another region using Data-in replication.
Read more at Cross region replication using Data-in replication with Azure Database for MySQL - Flexible Server