In 2019, Microsoft and Samsung announced a special partnership that would see many Microsoft apps and services be preloaded onto millions of Galaxy handsets worldwide. That partnership has continued to this day, with the latest Galaxy Z Fold 7 and Galaxy Flip 7 handsets continuing to ship with Microsoft apps like Outlook, Office, Phone Link, and OneDrive pre-installed.
The partnership also resulted in OneDrive being deeply integrated into Samsung's ecosystem, becoming the default cloud backup solution for photos taken and stored using Samsung's included Gallery app. Samsung dropped its own cloud-backup solution in favor of Microsoft's, and that's what has powered photo backups on all Galaxy phones since.
