You and rsync - what's your backup use

[kalpana]

Long story short: A long long time ago I had a salvaged 500GB HD that I put in a USB Case. I copy Documents folder and other data to that HD - drag and drop. Over the years of doing that I have several (time labeled) folders of data. An example would be DOCs230228 which is Documents folder from 2023-02-28.

After years of this, I have multiple time labeled folders of data, most the same data recopied. I am still not even close to using 1/4 of that HD.

So would rsync benefit me? Copy and sync only changed data? Or keep on keeping on with time labeled folders and data saved for that time period?

Your thoughts and experiences appreciated