i had this idea that a program can edit files in an encrypted environment. WinRaR with higher level of encryption would be the best way to describe it. but i was wonder if the files on a linux HDD or SDD are encrypted.
I do have this idea that you can save encrypted files to a cloud server and pull it out and unencrypted by a light weight program
This is not entirely correct. Many distributions do enable encryption by default. Also, encrypting the /boot partition does not guarantee the integrity of the boot sequence, you need to enable and correctly configure Secure Boot for that.