@patient0 I do nightly incremental backups, and full backups every 2 weeks. I keep several full generations.
The desktop data stripe is 8 x 1TB Samsung 860 SATA-3 SSDs. Boot drive is 2TB NVMe.
The NAS uses 8 x WD 14TB HDDs, again, in RAID-Z2, so there is 84TB usable capacity..
The backups tasks use Acronis True Image with a WOL script to wake up the NAS, since I don't keep on 24/7 - 8 platters are loud and use a fair amount of power. The LAN is 10 gig so even a full desktop backup isn't too long.