Can you please share your backup strategies for linux? I'm curious to know what tools you use and why?How do you automate/schedule backups? Which files/folders you back up? What is your prefered hardware/cloud storage and how do you manage storage space?
Synology NAS here also, divided into private (family stuff, docker volumes etc) and public (Linux ISOs and anything that can be redownloaded). Both get backed up weekly to an older NAS with Hyper Backup. Private additionally goes onto a LUKS encrypted drive monthly which is spot-checked, taken offsite, and the previous offsite drive brought back. I don't back up any PC (don't care, just reinstall) or phones (they are backed up on iCloud).