More like disassociation. They just don’t connect killing animals to eating meat. So they don’t feel a cognitive dissonance.
Like… People living comfortable in captialistic countries/societies, don’t think they personally kill all victims of capitalism. They just don’t connect these things. They disassociate their life and living standards from the ‘others’.









Btrfs is a filesystem just like ext4, you can mount the root subvolume and upload all files somewhere.
Timeshift is not a backup solution though. Snapshots are built-in with btrfs. So you can install a snapshotter tool like Snapper. But it would be best if you already have partitioned you btrfs filesystem into multiple subvolumes. Like the suggested layout.