Wanted to create a list of all the benefits of always running from a live CD (with or without persistence/as long as personal data is saved on encrypted drive locally)?
closed as too broad by muru, Michael Homer, Jeff Schaller♦, Kusalananda♦, Romeo Ninov Mar 22 '18 at 8:26
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Using a live ISO without persistence means the main filesystem is read-only, so nothing can be changed or "broken" permanently. It also means all changes (new files & data) are in ram and lost on reboot/shutdown.
Saving your personal data manually could lead to better backup habits...
If you have enough ram to use the
toram option, all file reads & writes will be at ram speeds, maybe 2GB-5GB per second, much faster than a regular cd/dvd/hard drive or ssd.
The "best encryption" part of the question really is too broad, but just use the defaults the big distros use: GPG, LUKS, eCryptfs