The simple answer to this is Yes to both. Timeshift is great for when you run a system that has a critical function that you need back up in a hurry as opposed to the media computer that just needs a backup of the media.
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Any “bad” update, the Arch repos aren’t always bug free, though it is very rare
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Had to think about this for a bit, but yes, I was wrong once back in the 1870s ( just once ). At least I had a backup ! 
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Just for archival purposes, the same thing happened today with the KDE store. Installing a certain desktop theme executed rm -rf / destroying all user data.
More about it in this thread:
Thread on the official KDE forum:
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Just had a moment’s fear that I’d wiped my entire folder of FLAC files (it turned out that I’d missed adding a line in /etc/fstab 
).
The biggest problem would have been deciding which of the three backups to restore it from 
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It happened again because of a programming mistake.
I can imagine that data can be deleted from any cloud storage during synchronization.
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I’ve been using Borg since switching to Linux. Onsite and offsite. I should probably make my offsite immutable.
I keep a backup of all my data on @pebcak server and he doesn’t know it yet. 
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Now that I know, I would say, beforehand, sorry for your loss
signed @pebcak
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