Which is better rsync or btrfs?

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Tags

1. #thing
2. #whether
3. #right
4. #better
5. #unless
6. #usually
7. #stored
8. #drive
9. #btrfs
10. #timeshift
11. #where
12. #formatted
13. #rsync
14. #backups
15. #first
16. #option
17. #choice
18. #different