Use .backup for disaster recovery (complete hardware failure on the same hardware). Use .rsc for configuration management (migrations, audits, and rapid restoration to any hardware).
Network administrators often learn the value of a good backup strategy right after a catastrophic failure. With MikroTik RouterOS, managing backups is highly flexible, but missteps can lead to bricked devices, lost configurations, or security vulnerabilities. mikrotik backup restore better
Migrating configuration to new hardware, backing up code, or auditing changes source: Social WiFi Academy . managing backups is highly flexible