Bro. Just try it with duplicate files.
You will find out if the pictures don't load.
As for syncing: I heard some use syncthing for that.
My personal problem with it is, that I can never be sure it's done with multi device usage as there is no feedback to tell me so.
I am using Obsidian.md both with a remote repository (built-in 1st party paid model) and a community plugin for another repository using remotely-save (which saves it to my personal onedrive folder).
Both options have an indicator that they are done saving.
But with remotely-save I encountered corruption when I turned on my pc which hadnt had connected in a longer time. And remotely-save is configured to stop syncing if >50% of files have been changed.
So now I am running a background task to zip the whole folder and purge the oldest one every week.
Office