Obsidian data security

https://help.obsidian.md/Advanced+topics/How+Obsidian+stores+data

some information in the system directory  ~/.config/Obsidian/ on Linux

Obsidian will recognize symbolic links and junctions. We do not officially recommend using these, but we recognize there are valid use-cases for them. Use them at your own risk.

Beware that there are many pitfalls to using symbolic links, and some of them could have serious consequences such as data-loss, file corruption, or could crash Obsidian.

• Symlinking things under the .obsidian/ directory in order to share them between vaults has a high chance of corrupting your settings, unless you really really know what you’re doing. If you decide to go this way, at least have backups.