Earlier quoted context omitted.
If you're using a flatpak, that's not actually the case. It would have very restricted access to the point where you even would have to explicitly give it access to user /home.
So if I run their software in a container they can't access my entire filesystem. I don't think that is a security feature. It sounds like if I ever run obsidian I should be using flat seal too.
I'm not claiming it's a security feature of Obsidian, I'm saying it's a consequence of running a flatpak - and in this situation it could be advantageous for those interested.