Note that Obsidian is not a file manager in the first place. Accessing and managing notes in the file structure is provided by a plugin. Obsidian can perfectly be used without that.
If more intensive file management is needed for some reason, you can turn, without any issue, to your trusted file manager. If you continuously have a need for heavy file management of your notes, then you may need to consider revising your workflow: again, file management is not core in note taking - one can (and perhaps even should) do without.