Help me figure out my usage for a NAS and my backup strategy?

It’s working fine for me. My iMac Pro alternates between backing up to my Synology and to an external USB-connected (spinning) drive.

MacBook Pro backs up over WiFi. It fails sometimes due to disconnecting (e.g. when I leave in the morning, or sleep the laptop). I don’t worry too much. I usually have a wired connection once or twice a week, and it uses that too. When the laptop is at school, it backs up to a small (1T, 2.5”) spinning drive.

I do bootable backups with Carbon Copy Cloner every couple of weeks. I need a more definite schedule for this. Backup destinations are external SSDs.

Finally, both laptop and iMac are backed up by Backblaze.

Folks here on the forum helped me think these things through. I’m grateful for their help. Unexpected consequence of getting a NAS, internet usage is through the roof