If you have a regular linux distro like Debian 13 with the provided full disk encryption method on the wizard, is it possible that you could open files there that do not leak all over system logs or tmp files?
Example, you open a .csv with Libreoffice, im sure that the damn file is being copied all over the place in temporary folders and who knows what, so basically I just assume that and rely on full disk encryption. Well my question is, it would be possible to avoid this annoying? I wish programs would just open the damn files, and do not leave phantom copies all over the place. I remember editing a txt file on some other Linux distro when I was a newbie, I think Elementary OS or something like that. Well I was shocked to see that the txt file was perfectly available from other folders, sort of a temp folder, cached copies or something. I thought that was a Window thing but apparently it isn’t. So basically I decided to go with full disk encryption. And if I need to do backups of encrypted files from one drive to another, to not mix things up, I open the drives through a Tails live session. I was just wondering if it’s possible to open files, and guarantee no leaks elsewhere when you boot from your regular Debian distro.
One thing that came to my mind is Virtual Machine. It won’t stop leaks from file but will make it happen in emulated environment, not main os. Kinda way around. Didn’t tried, just an idea